I need a switch, limit but not valve type, in other words not one that opens a always on type of feed like from a hose. One that will be in a rez and when the water gets low can turn on a power strip or another electrical device to fill the main rez and then go off when the level is high enough again. Now I got lots of grief for asking this the first time and after contacting every company, and also the ones some angry responders linked in their replys, not a final word as to what would work yet! One comapany reffered the question to the tech dept. and have not heard from that dept. yet. So to sum up my question seems to be one worth asking and all the smart ass repliers can kiss my buttocks because I did look.. Anyone help?? Please understand the question or ask if you don't before you answer please. Thanks in advance....kiss-ass