{"product_id":"pool-link-500-series-tac-probe-gel","title":"Pool Link 500 Series, TAC Probe Gel","description":"\u003cp data-path-to-node=\"0\" class=\"first-token\"\u003e\u003cspan class=\"\"\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"4\" class=\"\"\u003ePool Link 500 Series TAC Probe Gel\u003c\/b\u003e\u003cspan class=\"\"\u003e (Pool Link \/ Link Automation) is a specialized,\u003c\/span\u003e\u003cspan\u003e catalytic electrolyte gel formulated specifically for the internal reservoir of the Pool Link 500 Series Amperometric Total Available Chlorine (TAC) 0–20 PPM probe.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\"\u003e\u003cspan\u003eUnlike standard Free Available Chlorine (FAC) electrolytes that only facilitate direct hypochlorous acid reduction,\u003c\/span\u003e\u003cspan\u003e the TAC electrolyte contains an internal potassium iodide (\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\text{KI}\" data-index-in-node=\"175\"\u003e$\\text{KI}$\u003c\/span\u003e\u003cspan\u003e) reagent and buffer matrix.\u003c\/span\u003e\u003cspan\u003e When free chlorine and combined chloramines diffuse through the probe's semi-permeable membrane,\u003c\/span\u003e\u003cspan class=\"\"\u003e they react with the iodide in the gel to form triiodide (\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\text{I}_3^-\" data-index-in-node=\"367\"\u003e$\\text{I}_3^-$\u003c\/span\u003e\u003cspan\u003e),\u003c\/span\u003e\u003cspan\u003e which is electrochemically reduced at the working cathode.\u003c\/span\u003e\u003cspan\u003e This provides an ion-conductive pathway to the silver\/silver chloride (\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\text{Ag\/AgCl}\" data-index-in-node=\"512\"\u003e$\\text{Ag\/AgCl}$\u003c\/span\u003e\u003cspan\u003e) reference anode and generates a current proportional to total chlorine concentration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"3\"\u003eChemical Formulation \u0026amp; Functional Characteristics\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003e\u003cspan\u003eEngineered to maintain stable reaction stoichiometry and baseline conductivity across commercial aquatic operations:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eCatalytic Iodide Buffer Matrix:\u003c\/b\u003e\u003cspan\u003e Formulated with high-purity potassium iodide (\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\text{KI}\" data-index-in-node=\"78\"\u003e$\\text{KI}$\u003c\/span\u003e\u003cspan\u003e) in a buffered saline electrolyte base (typically potassium chloride,\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"KCl\" data-index-in-node=\"158\"\u003e$KCl$\u003c\/span\u003e\u003cspan\u003e).\u003c\/span\u003e\u003cspan\u003e It maintains a constant internal pH to ensure complete,\u003c\/span\u003e\u003cspan\u003e rapid stoichiometric conversion of combined chloramines into electroactive species.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eThixotropic Gelled Viscosity:\u003c\/b\u003e\u003cspan\u003e Formulated using high-grade,\u003c\/span\u003e\u003cspan\u003e chemically inert cellulosic or synthetic thickening polymers.\u003c\/span\u003e\u003cspan\u003e The high-viscosity gel resists internal boundary layer drying and prevents electrolyte weep-out through the microporous membrane under line pressure variations up to 50 PSI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\" class=\"\"\u003eLight-Sensitive \u0026amp; Anti-Oxidation Chemistry:\u003c\/b\u003e\u003cspan\u003e Compounded to minimize self-oxidation from exposure to ambient light and air.\u003c\/span\u003e\u003cspan\u003e The gel is packaged in amber or opaque containers to prevent premature decomposition of iodide into free iodine.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eDe-Aerated Formulation:\u003c\/b\u003e\u003cspan\u003e Treated to eliminate micro-entrained bubbles during bottling,\u003c\/span\u003e\u003cspan\u003e allowing the technician to fill the membrane cap cleanly without air pockets clinging to the cathode face.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"7\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003eCompatible Sensor:\u003c\/b\u003e\u003cspan\u003e Pool Link 500 Series Amperometric Total Available Chlorine (TAC) Probe (0–20 PPM).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eElectrochemical Cell Pairing:\u003c\/b\u003e\u003cspan\u003e Formulated specifically for \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\text{Pt-Ag\/AgCl}\" data-index-in-node=\"58\"\u003e$\\text{Pt-Ag\/AgCl}$\u003c\/span\u003e\u003cspan\u003e or \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\text{Au-Ag\/AgCl}\" data-index-in-node=\"79\"\u003e$\\text{Au-Ag\/AgCl}$\u003c\/span\u003e\u003cspan\u003e polarographic\/amperometric total chlorine cells.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eOperating Temperature Limits:\u003c\/b\u003e\u003cspan\u003e 35°F to 120°F (2°C to 49°C).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eContainer Volume:\u003c\/b\u003e\u003cspan\u003e Standard \u003c\/span\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"27\"\u003e30 mL to 60 mL\u003c\/b\u003e\u003cspan\u003e (approx.\u003c\/span\u003e\u003cspan\u003e 1 to 2 fl.\u003c\/span\u003e\u003cspan\u003e oz.\u003c\/span\u003e\u003cspan\u003e) opaque squeeze dropper bottles fitted with a fine dispensing tip.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eService Yield:\u003c\/b\u003e\u003cspan\u003e One 30 mL bottle provides approximately \u003c\/span\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"55\"\u003e10 to 15 membrane cap fills\u003c\/b\u003e\u003cspan\u003e (average fill volume is 1.\u003c\/span\u003e\u003cspan\u003e5 mL to 2.\u003c\/span\u003e\u003cspan\u003e5 mL per service).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,5,0\"\u003e\u003cb data-path-to-node=\"8,5,0\" data-index-in-node=\"0\"\u003eShelf Life \u0026amp; Storage:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb data-path-to-node=\"8,5,0\" data-index-in-node=\"22\"\u003e12 to 18 months\u003c\/b\u003e\u003cspan\u003e unopened when stored at room temperature (50°F to 77°F \/ 10°C to 25°C) in a dark,\u003c\/span\u003e\u003cspan class=\"\"\u003e dry location.\u003c\/span\u003e\u003cspan class=\"\"\u003e Depletes faster once opened due to atmospheric oxidation; recap tightly immediately after dispensing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"9\" class=\"\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cdiv class=\"attachment-container unknown md-has-block-component\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003csequence class=\"lm-enabled ng-star-inserted\"\u003e\u003cdiv role=\"list\" class=\"sequence-container\" jslog=\"308913;track:impression,attention\" data-hveid=\"0\" decode-data-ved=\"1\" data-ved=\"0CAAQse0SahgKEwjHxM7M582XAxUAAAAAHQAAAAAQpQc\"\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e1.\u003c!----\u003e\u003c!----\u003eIsolate Bypass Flow and Extract Probe:\u003c!----\u003e\u003c\/strong\u003ePrerequisite.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eClose the inlet and outlet isolation valves on the 500 Series acrylic flow cell to relieve line pressure. Loosen the compression gland nut and slide the TAC probe out of the manifold port.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e Flow cell pressure gauge drops to 0 PSI and no water weeps from the open probe port.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e2.\u003c!----\u003e\u003c!----\u003eRemove Depleted Cap and Clean Cathode:\u003c!----\u003e\u003c\/strong\u003e3 min.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eUnscrew the old membrane cap counter-clockwise over a waste receptacle and discard the spent electrolyte. Rinse the internal cathode tip with distilled water and gently wipe it with a soft lint-free cloth or lens paper.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The noble metal cathode surface is bright and free of yellowed iodide staining or mineral deposits.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e3.\u003c!----\u003e\u003c!----\u003eFill and Seat the Replacement Cap:\u003c!----\u003e\u003c\/strong\u003e5 min.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eFill the new replacement membrane cap approximately 3\/4 full with fresh, bubble-free TAC probe electrolyte gel. With the probe held vertically, slide the cap onto the shaft and thread it on slowly to allow excess gel to vent through the relief threads.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The cap seats flush against the O-ring shoulder, and the membrane face remains flat without trapped air bubbles.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e4.\u003c!----\u003e\u003c!----\u003eReinstall in Flow Cell and Polarize:\u003c!----\u003e\u003c\/strong\u003e2–4 hours.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eReinstall the probe in the acrylic manifold, tighten the compression nut, and reopen the bypass valves to restore 0.5 to 1.5 GPM flow. Allow the sensor to polarize electrically under power for 2 to 4 hours before calibrating against a DPD-3\/4 photometer test.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The TAC PPM readout on the Pool Link 501 controller settles into a stable, non-drifting baseline.\u003c\/p\u003e\u003c\/structured-text\u003e\u003c\/structured-node-sequence\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/sequence\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"attachment-container unknown md-has-block-component\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003csequence class=\"lm-enabled ng-star-inserted\"\u003e\u003cdiv role=\"list\" class=\"sequence-container\" jslog=\"308913;track:impression,attention\" data-hveid=\"0\" decode-data-ved=\"1\" data-ved=\"0CAAQse0SahgKEwjHxM7M582XAxUAAAAAHQAAAAAQpQc\"\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e1.\u003c!----\u003e\u003c!----\u003eIsolate Bypass Flow and Extract Probe:\u003c!----\u003e\u003c\/strong\u003ePrerequisite.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eClose the inlet and outlet isolation valves on the 500 Series acrylic flow cell to relieve line pressure. Loosen the compression gland nut and slide the TAC probe out of the manifold port.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e Flow cell pressure gauge drops to 0 PSI and no water weeps from the open probe port.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e2.\u003c!----\u003e\u003c!----\u003eRemove Depleted Cap and Clean Cathode:\u003c!----\u003e\u003c\/strong\u003e3 min.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eUnscrew the old membrane cap counter-clockwise over a waste receptacle and discard the spent electrolyte. Rinse the internal cathode tip with distilled water and gently wipe it with a soft lint-free cloth or lens paper.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The noble metal cathode surface is bright and free of yellowed iodide staining or mineral deposits.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e3.\u003c!----\u003e\u003c!----\u003eFill and Seat the Replacement Cap:\u003c!----\u003e\u003c\/strong\u003e5 min.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eFill the new replacement membrane cap approximately 3\/4 full with fresh, bubble-free TAC probe electrolyte gel. With the probe held vertically, slide the cap onto the shaft and thread it on slowly to allow excess gel to vent through the relief threads.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The cap seats flush against the O-ring shoulder, and the membrane face remains flat without trapped air bubbles.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e4.\u003c!----\u003e\u003c!----\u003eReinstall in Flow Cell and Polarize:\u003c!----\u003e\u003c\/strong\u003e2–4 hours.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eReinstall the probe in the acrylic manifold, tighten the compression nut, and reopen the bypass valves to restore 0.5 to 1.5 GPM flow. Allow the sensor to polarize electrically under power for 2 to 4 hours before calibrating against a DPD-3\/4 photometer test.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The TAC PPM readout on the Pool Link 501 controller settles into a stable, non-drifting baseline.\u003c\/p\u003e\u003c\/structured-text\u003e\u003c\/structured-node-sequence\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/sequence\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"attachment-container unknown md-has-block-component\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003csequence class=\"lm-enabled ng-star-inserted\"\u003e\u003cdiv role=\"list\" class=\"sequence-container\" jslog=\"308913;track:impression,attention\" data-hveid=\"0\" decode-data-ved=\"1\" data-ved=\"0CAAQse0SahgKEwjHxM7M582XAxUAAAAAHQAAAAAQjwc\"\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e1.\u003c!----\u003e\u003c!----\u003eIsolate Bypass Flow and Remove Probe:\u003c!----\u003e\u003c\/strong\u003ePrerequisite.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eClose the inlet and outlet isolation valves on the 500 Series acrylic flow cell to relieve hydraulic pressure. Unthread the probe's compression collar and extract the sensor body from the manifold.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e Flow cell pressure gauge drops to 0 PSI and no bypass water flows from the open port.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e2.\u003c!----\u003e\u003c!----\u003eFlush Depleted Electrolyte and Clean Electrode:\u003c!----\u003e\u003c\/strong\u003e2 min.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eUnscrew the lower membrane cap and discard old electrolyte into a sink or waste container. Rinse the internal cathode tip and cap reservoir thoroughly with distilled or deionized water, then gently blot dry with a lint-free tissue.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The internal chamber is clean and the cathode surface is free of mineral buildup or discolored gel residue.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e3.\u003c!----\u003e\u003c!----\u003eFill Membrane Cap with Fresh Gel:\u003c!----\u003e\u003c\/strong\u003e3 min.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eInvert the FAC Probe Gel bottle and tap it gently to dislodge air bubbles from the dispensing nozzle. Carefully fill the membrane cap approximately \u003cb\u003e3\/4 full\u003c\/b\u003e with fresh gel, avoiding micro-bubble entrapment.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The gel inside the cap is clear, continuous, and free of visible air pockets.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e4.\u003c!----\u003e\u003c!----\u003eThread Cap and Vent Hydrostatic Pressure:\u003c!----\u003e\u003c\/strong\u003e2 min.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eHolding the probe vertically, slowly screw the filled membrane cap onto the probe shaft. Allow excess gel to escape through the pressure-relief threads\/vent without forcing or stretching the delicate membrane face.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The cap is firmly seated against its stop and the outer membrane remains smooth and flat.\u003c\/p\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c\/structured-text\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/structured-node-sequence\u003e\u003c!----\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv role=\"listitem\" class=\"sequence-event ng-star-inserted\"\u003e\u003cdiv class=\"sequence-event-content\"\u003e\u003cdiv class=\"sequence-event-description gds-body-l\"\u003e\n\u003cspan only-show-to-message-actions=\"\" data-test-id=\"sequence-export-header\" class=\"only-show-to-message-actions\"\u003e\u003cstrong\u003e\u003c!----\u003e\u003c!----\u003e5.\u003c!----\u003e\u003c!----\u003eReinstall in Flow Cell and Polarize:\u003c!----\u003e\u003c\/strong\u003e1–2 hours.\u003c!----\u003e\u003c!----\u003e\u003c\/span\u003e\u003cstructured-node-sequence _nghost-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003cstructured-text _ngcontent-ng-c1241692568=\"\" class=\"ng-star-inserted\"\u003e\u003c!----\u003e\u003c!----\u003e\u003cp class=\"ng-star-inserted\"\u003eReinstall the probe in the acrylic flow cell, tighten the compression collar, and reopen the bypass valves. Restore steady water flow (0.5 to 1.5 GPM) and let the sensor polarize under power for 1 to 2 hours before running span calibration.\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003ci\u003eVerification:\u003c\/i\u003e The FAC reading on the Pool Link 501 controller settles into a stable, non-drifting baseline matching a DPD photometer test.\u003c\/p\u003e\u003c\/structured-text\u003e\u003c\/structured-node-sequence\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/sequence\u003e\n\u003c\/div\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":67968947585135,"sku":"LINK-TACGEL","price":445.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/mermade-filter-500-series-automatic-chemical-feed-controller-by-pool-link-474-474_d4279122-6b2c-41b3-b454-449be02908c2.jpg?v=1792681416","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pool-link-500-series-tac-probe-gel","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}