{"product_id":"icecap-magnet-mount-float-valve-for-ato-and-ro-di-systems","title":"IceCap Magnet Mount Float Valve for ATO and RO\/DI Systems","description":"\u003ch2 data-oe-version=\"1.2\"\u003eMagnetic Float Valve for ATO Reservoirs and RO\/DI Storage Containers\u003c\/h2\u003e\u003cdiv\u003eThe IceCap Magnet Mount Float Valve is a mechanical water level shutoff valve that stops water flow automatically when a reservoir or storage container reaches the desired fill level. It is designed for use in ATO top-off reservoirs and RO\/DI storage containers, where hands-free, unattended filling is the goal and overflow prevention is the priority.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eThe valve works on a simple, reliable mechanical principle: as the water in the container rises, it lifts the float, which closes the valve and builds back-pressure against the supply line, stopping the flow of water. No electricity, sensors, or controllers are required. When the water level drops and the float lowers, the valve opens again and water resumes flowing. This makes it a fully passive, self-regulating shutoff that operates independently of any ATO system electronics.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eThe magnetic mount eliminates the need to drill holes or use permanent brackets. The mount attaches to the outside wall of the container and the valve body holds magnetically on the inside, allowing height adjustment without tools. Included tubing and a universal tubing retainer connect the valve to a standard RO\/DI supply line or ATO feed line.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eThe IC-FS003M is particularly useful as a redundancy layer in ATO systems. If the primary ATO sensor or controller fails in a way that leaves the top-off pump running, the float valve closes mechanically before the reservoir overflows, providing a passive backup shutoff that operates independently of the electronic system.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMechanical float valve shutoff requires no electricity, sensors, or controllers to operate.\u003c\/li\u003e\n\u003cli\u003eMagnetic mount attaches to the outside of any container wall; valve body holds magnetically on the inside for tool-free height adjustment.\u003c\/li\u003e\n\u003cli\u003eNo drilling or permanent installation required.\u003c\/li\u003e\n\u003cli\u003eFloat rises with water level and closes the valve, building back-pressure to stop water flow at the set level.\u003c\/li\u003e\n\u003cli\u003eValve opens again automatically when water level drops and the float lowers.\u003c\/li\u003e\n\u003cli\u003eIncludes universal tubing retainer and tubing for direct connection to RO\/DI or ATO supply lines.\u003c\/li\u003e\n\u003cli\u003eFunctions as a passive redundancy backup in ATO systems in the event of sensor or controller failure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal For:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eATO top-off reservoirs where a passive mechanical shutoff is needed to prevent overflow if the primary ATO sensor or pump fails.\u003c\/li\u003e\n\u003cli\u003eRO\/DI storage containers where hands-free, unattended filling from the RO\/DI system output is the goal.\u003c\/li\u003e\n\u003cli\u003eHobbyists who want a non-electronic backup layer of overflow protection in their ATO or top-off setup.\u003c\/li\u003e\n\u003cli\u003eAny freshwater or saltwater container application where a self-regulating, pressure-based mechanical fill shutoff is needed.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePro Tips:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse it as a backup to your ATO system, not a replacement for it. \u003c\/strong\u003eThe float valve is a passive mechanical device that adds a layer of security to an existing ATO setup. It is not a substitute for a properly functioning ATO sensor and controller. The float valve's job is to catch the failure the ATO misses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition the float at the fill level you want, not the overflow point. \u003c\/strong\u003eThe magnetic mount makes height adjustment easy. Set the float so the valve closes at the water level where the reservoir is full but still has headroom below the rim. This gives the float room to rise and close before the container runs over.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the float and tubing connection periodically for salt creep or mineral deposits. \u003c\/strong\u003eIn saltwater ATO reservoirs, salt residue can build up on the float or valve body over time and affect how smoothly the float moves. A quick rinse during regular maintenance keeps the valve operating reliably.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IceCap","offers":[{"title":"Default Title","offer_id":50483991871736,"sku":"IC-FS003M","price":40.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/3dd618f1118a20ee1ba4a2633915c4be.jpg?v=1789092731","url":"https:\/\/www.blueearthaquariums.com\/products\/icecap-magnet-mount-float-valve-for-ato-and-ro-di-systems","provider":"Blue Earth Corals","version":"1.0","type":"link"}