muz Posted July 25, 2012 Report Share Posted July 25, 2012 Hi all, I use a 12/24volt irrigation solenoid on the tanks outlet available from irrigation shops,simply plug into transformer ,hence when power outage occurs solenoid closes and opens again when power is restored,no over flow ,small sump no problem. Link to comment Share on other sites More sharing options...
nickm986 Posted July 25, 2012 Report Share Posted July 25, 2012 Great idea, depending on how you have your inlets to your tank's you should also put one on the outlet of your sump pump to stop the water siphoning back into the sump through the inlet pipes. Link to comment Share on other sites More sharing options...
muz Posted July 27, 2012 Author Report Share Posted July 27, 2012 On the pressure side of the pump you can install a non return valve,pump pressure will hold valve open and when pressure drops valve shuts,will not work on gravity fed lines,I use 40mm on the pump outlet and all tanks are plumbed into 90mm storm water pipe back to sump,grey water pump feeds an entire fish room and some more. Link to comment Share on other sites More sharing options...
