coralreefer Posted September 13, 2009 Share Posted September 13, 2009 I have in my garage, a sink with RO-DI hooked up to it, which runs to a 50 gallon plastic reservoir barrel. Water from that I pump under house and up to my fish tank as topoff. That is on a timer. What I need is a system to shut off RO-DI when reservoir barrel gets full. If I forget to shut off faucet feeding RO-DI, my barrel overflows and garage gets real wet. I've tried 2 different ATO back pressure valves from BULKREEFSUPPLY and neither seemed to shut off...I watched their videos and made sure I was connecting correctly. What I want is a solenoid on the line going from sink faucet to RO-DI, that is activated electrically. I don't understand what is supposed to trigger the solenoid to close and stop water flow...is there an electrical float valve out there that sends message to solenoid to close? Is there such a thing as electrical float valve?. Strictly back pressure closure valves I have not been impressed with...help!! DrMerle Quote Link to comment Share on other sites More sharing options...
Smann Posted September 13, 2009 Share Posted September 13, 2009 There was just a thread a week ago on ro/di reservoirs with float switches and electric solenoids, I cant seem to find it. might try searching the threads Quote Link to comment Share on other sites More sharing options...
wanareef Posted September 15, 2009 Share Posted September 15, 2009 This is the solenoid that I use to keep water from siphoning back from the kalk reactor. But you will need a relay to activate it 12 Volt DPDT Relay Brand: Wenzjhou Zhinhong Item Number: RLY002 Price: $7.99 12 Volt Relay Socket Brand: Wenzhou Jinhong Item Number: SOC001 Price: $4.99 http://www.aquahub.com/store/floatswitches.html The solenoid I got from McMasterCarr #7877K3 http://www.mcmaster.com/#7877k3/=3nayb8 comes in 24vdc, 12vdc and 110vac You can use a float switch (that is on low voltage +12, wall wart) to activate the relay, then it will energize (using 110v) the solenoid and open the valve (solenoids you can get "NO" or "NC" normally open or normally closed) There is a diagram of the relay on the above link. Quote Link to comment Share on other sites More sharing options...
CCR Posted September 15, 2009 Share Posted September 15, 2009 http://www.pnwmas.org/forums/showthread.php?t=14224 is one thread and I'll get the other, here ya go http://www.pnwmas.org/forums/showthread.php?t=14198 Quote Link to comment Share on other sites More sharing options...
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