Clear Vision...I don't know to much how that works it must shut off your delivery pump from your static tank,
Bazz...
Spot on bazz.
Thought you wanted something like that?
It might not interest you but I will explain to you how it works.
My static tank sits all on its own down the bottom of the garden
I have a whale 12v submersible pump in the tank with 40ft of hose coming from it with speaker wire running/taped to the outside of the hose for the power source.
Then in the van, that little black box you see behind the croc clips is a relay. My float valve is connected to it and so is the croc clips & a socket.
All I do Is put the hose in the tank in the van and then connect the croc clips to my battery in the van and plug in the end of the power supply (speaker wire) to the black socket on the relay.
Then it starts to fill up and shuts off automatically when full.
Couldn't be without it now!