Sorry I should be more clear.
I want to see if I can divert water from my shower to a tank while I'm waiting for it to turn hot.
I intend to use the ATLAS SCIENTIFIC ENV-TMP temperature sensor in the pipe/tube but need a motorized valve of some sort to automatically send the "hot" water back to the shower.
I'm not sure if a solenoid valve is what I need.
Any help would be greatly appreciated.