{"product_id":"35-gallon-double-wall-containment-tank-22-dia-x-36h-6-vented-manway","title":"35 Gallon Double Wall Containment Tank, 22\" Dia x 36\"H, 6\" Vented Manway","description":"\u003cp data-path-to-node=\"0\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"4\"\u003e35 Gallon Double Wall Containment Tank (22\" Dia × 36\" H with 6\" Vented Manway)\u003c\/b\u003e\u003cspan\u003e is a heavy-duty,\u003c\/span\u003e\u003cspan\u003e self-contained chemical storage and dispensing vessel designed specifically for commercial aquatic facilities,\u003c\/span\u003e\u003cspan\u003e industrial water treatment,\u003c\/span\u003e\u003cspan\u003e and municipal chemical feed applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\"\u003e\u003cspan\u003eEngineered with a \"tank-within-a-tank\" architecture,\u003c\/span\u003e\u003cspan\u003e it fulfills EPA,\u003c\/span\u003e\u003cspan\u003e OSHA,\u003c\/span\u003e\u003cspan\u003e and local commercial secondary containment mandates (EPA 40 CFR 264.\u003c\/span\u003e\u003cspan\u003e175) without the need for external concrete dikes,\u003c\/span\u003e\u003cspan\u003e catch basins,\u003c\/span\u003e\u003cspan\u003e or separate containment berms.\u003c\/span\u003e\u003cspan\u003e In commercial pool equipment rooms,\u003c\/span\u003e\u003cspan\u003e it is the standard vessel for storing aggressive chemical feeds such as liquid sodium hypochlorite (12.\u003c\/span\u003e\u003cspan\u003e5% chlorine),\u003c\/span\u003e\u003cspan\u003e muriatic acid (31.\u003c\/span\u003e\u003cspan\u003e45% hydrochloric acid),\u003c\/span\u003e\u003cspan\u003e sulfuric acid,\u003c\/span\u003e\u003cspan\u003e sodium bisulfate slurries,\u003c\/span\u003e\u003cspan\u003e and coagulants.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"attachment-container search-images 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\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003ch3 data-path-to-node=\"4\"\u003eMechanical \u0026amp; Structural Architecture\u003c\/h3\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\"\u003eIntegrated Secondary Containment (110% to 120% Capacity):\u003c\/b\u003e\u003cspan\u003e The outer containment tank is engineered to hold a minimum of 110% to 120% of the inner primary vessel's volume.\u003c\/span\u003e\u003cspan\u003e In the event of primary tank failure,\u003c\/span\u003e\u003cspan\u003e stress cracking,\u003c\/span\u003e\u003cspan\u003e or internal fitting leaks,\u003c\/span\u003e\u003cspan\u003e all chemical volume is captured within the interstitial annular space.\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\"\u003eRotomolded Seamless Construction:\u003c\/b\u003e\u003cspan\u003e Rotationally molded from high-density linear polyethylene (HDLPE) or high-density cross-linked polyethylene (XLPE).\u003c\/span\u003e\u003cspan\u003e Monolithic molding eliminates seams,\u003c\/span\u003e\u003cspan\u003e welds,\u003c\/span\u003e\u003cspan\u003e and structural joints that are prone to environmental stress cracking under thermal expansion or aggressive chemical exposure.\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\"\u003eHeavy-Duty Specific Gravity Rating:\u003c\/b\u003e\u003cspan\u003e Rated for specific gravities of \u003c\/span\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"68\"\u003e1.5 to 1.9 SG\u003c\/b\u003e\u003cspan\u003e,\u003c\/span\u003e\u003cspan\u003e easily handling heavy fluids like 31.\u003c\/span\u003e\u003cspan\u003e45% muriatic acid (~1.\u003c\/span\u003e\u003cspan\u003e16 SG) and concentrated 12.\u003c\/span\u003e\u003cspan\u003e5–15% sodium hypochlorite (~1.\u003c\/span\u003e\u003cspan\u003e20–1.\u003c\/span\u003e\u003cspan\u003e22 SG).\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\"\u003e6\" Vented Access Manway:\u003c\/b\u003e\u003cspan\u003e Features a 6-inch threaded or quarter-turn vented access lid with an internal splash baffle or breathable membrane.\u003c\/span\u003e\u003cspan\u003e The vent prevents pressure buildup from chemical off-gassing (such as sodium hypochlorite decomposing into oxygen gas) while preventing vacuum collapse during rapid suction draw from high-output metering pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,4,0\"\u003e\u003cb data-path-to-node=\"5,4,0\" data-index-in-node=\"0\"\u003eMolded Pump Mounting Flat:\u003c\/b\u003e\u003cspan\u003e The top dome incorporates reinforced flat landing surfaces designed to directly anchor electronic metering pumps,\u003c\/span\u003e\u003cspan\u003e peristaltic feeders,\u003c\/span\u003e\u003cspan\u003e suction lances,\u003c\/span\u003e\u003cspan\u003e and liquid level sensors without requiring external wall brackets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,5,0\"\u003e\u003cb data-path-to-node=\"5,5,0\" data-index-in-node=\"0\"\u003eVisual Fluid Level Tracking:\u003c\/b\u003e\u003cspan\u003e Molded in natural translucent white polyethylene,\u003c\/span\u003e\u003cspan\u003e featuring embossed gallon and liter graduation marks down the sidewall for fast liquid level inventory checks at a glance.\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\"\u003eNominal Primary Capacity:\u003c\/b\u003e\u003cspan\u003e 35 US Gallons (approx.\u003c\/span\u003e\u003cspan\u003e 132.\u003c\/span\u003e\u003cspan\u003e5 Liters).\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\"\u003eOuter Containment Volume:\u003c\/b\u003e\u003cspan\u003e Approx.\u003c\/span\u003e\u003cspan\u003e 40 to 45 US Gallons (fulfilling \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\u0026gt;110\\%\" data-index-in-node=\"66\"\u003e$\u0026gt;110\\%$\u003c\/span\u003e\u003cspan\u003e secondary containment requirements).\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\"\u003eOverall Outside Dimensions:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"28\"\u003e22\" Outer Diameter × 36\" Overall Height\u003c\/b\u003e\u003cspan\u003e (approx.\u003c\/span\u003e\u003cspan\u003e 55.\u003c\/span\u003e\u003cspan\u003e9 cm Dia.\u003c\/span\u003e\u003cspan\u003e × 91.\u003c\/span\u003e\u003cspan\u003e4 cm H).\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\"\u003eManway Access:\u003c\/b\u003e\u003cspan\u003e 6\" heavy-duty threaded polypropylene access cap with integrated pressure-relief vent.\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\"\u003eSpecific Gravity Rating:\u003c\/b\u003e\u003cspan\u003e Standard 1.\u003c\/span\u003e\u003cspan\u003e5 SG (water\/acid); heavy-duty 1.\u003c\/span\u003e\u003cspan\u003e9 SG options available.\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\"\u003eOperating Temperature Limits:\u003c\/b\u003e\u003cspan\u003e -20°F to 120°F (-29°C to 49°C) continuous service.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,6,0\"\u003e\u003cb data-path-to-node=\"8,6,0\" data-index-in-node=\"0\"\u003eFitting \u0026amp; Port Provisions:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"8,6,1\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,6,1,0,0\"\u003e\u003cspan\u003eTop dome flats accommodate up to two 2\" NPT female bulkhead fittings (for suction lances,\u003c\/span\u003e\u003cspan\u003e return lines,\u003c\/span\u003e\u003cspan\u003e or interstitial leak probes).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,6,1,1,0\"\u003e\u003cspan\u003eOptional bottom-drain containment transitions or top-draw-only suction assemblies to prevent gravity leaks.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"10\"\u003eChemical Compatibility Reference\u003c\/h3\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"0\"\u003eSodium Hypochlorite (12.5% – 15%):\u003c\/b\u003e\u003cspan\u003e Fully compatible.\u003c\/span\u003e\u003cspan\u003e The vented manway ensures continuous dissipation of liberated oxygen gas.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e\u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"0\"\u003eMuriatic Acid (Hydrochloric Acid, 28% – 31.45%):\u003c\/b\u003e\u003cspan\u003e Fully compatible.\u003c\/span\u003e\u003cspan\u003e Eliminates fuming into the mechanical room when plumbed with a sealed suction assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003e\u003cb data-path-to-node=\"11,2,0\" data-index-in-node=\"0\"\u003eSulfuric Acid (up to 50% concentration):\u003c\/b\u003e\u003cspan\u003e Fully compatible at ambient temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,0\"\u003e\u003cb data-path-to-node=\"11,3,0\" data-index-in-node=\"0\"\u003eLiquid Coagulants \u0026amp; Polyaluminum Chloride (PAC):\u003c\/b\u003e\u003cspan\u003e Fully compatible; non-staining surface prevents organic adhesion.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":68029714661487,"sku":"1000112N45","price":2177.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/SMS-868-V167-1000112N45-Main__99409.webp?v=1793115437","url":"https:\/\/commercialpoolandspasupplies.com\/products\/35-gallon-double-wall-containment-tank-22-dia-x-36h-6-vented-manway","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}