{"product_id":"pentair-cs400™-commercial-backwash-semi-auto-controller-for-02-tank-system","title":"Pentair CS400™ Commercial Backwash Semi-Auto Controller for '02 Tank System","description":"\u003cp data-path-to-node=\"1\"\u003eThe Pentair Stark™ CS400™ Commercial Semi-Automatic Backwash Controller for a 2-Tank System (Model CS400-02) is an advanced, programmable automation hub meticulously engineered to optimize the sequential backwashing of dual-vessel commercial sand filtration configurations. Designed for public swimming pools, community aquatic centers, and high-demand water features utilizing Stark™ or THS Series® horizontal sand filters, this sophisticated control unit bridges the gap between labor-intensive manual cleaning and fully automated systems. \u003cspan class=\"citation-172 citation-end-172\"\u003ePowered by integrated Acu-Trol® intelligence, the CS400 allows an operator to safely initiate a flawless, multi-stage backwash cycle at the single touch of a button.\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Once triggered, the internal, motorized multi-port pressure distribution valve automatically sequences the cycle by routing regulated city water pressure or compressed air (35 to 40 PSI) to actuate large, diaphragm-style face-piping valves one tank at a time. This progressive execution ensures stable hydraulic balancing across the pool equipment pad, preventing sudden pressure drops while incorporating specialized safeguards like a built-in \"Fireman's Delay\" heater cool-down relay and main pump interlocks to eliminate any risk of thermal stress or mechanical cavitation. \u003cspan class=\"citation-171 citation-end-171\"\u003eHoused inside a rugged, weather-resistant, and NEMA-rated non-corrosive enclosure to withstand harsh chemical environments, the controller also includes a backlit LCD status display, digital alarms, saved backwash history logs, and seamless connectivity mapping to master filtration room networks like the Acu-Trol AK600.\u003csup class=\"superscript\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e The dry product weight of the Pentair CS400-02 Semi-Automatic Backwash Controller is approximately \u003cb data-path-to-node=\"1\" data-index-in-node=\"1706\"\u003e25 pounds\u003c\/b\u003e (with a packaged shipping weight of roughly 26 pounds including internal pressure regulators and installation hardware), providing commercial operators with an incredibly efficient, water-saving, and highly dependable fluid-management solution.\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":53159804862575,"sku":"CS400-02","price":11485.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/KDI-05-1010_medium_8cd2d4f5-b1a9-45c6-8a32-7276b50c98b2.jpg?v=1779822782","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pentair-cs400%e2%84%a2-commercial-backwash-semi-auto-controller-for-02-tank-system","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}