I wanted to make a Legbag emptier similar to
http://www.wheelchairs.com/legbag2.htm
Which the urine never touches the solenoid. The one I have the link above the solenoid has a manual override with a spring. Also connected to a resistor. When it works it’s great but very costly and connection always get loose and eventually not enough wire left to fix.
It powered 24v with a switch to open and close.
Any help would be appreciated!