Drain Master electric waste valves
Unfortunately, my ten year old trailer came equipped with electric drain valves and switch gear. They were nice when they worked which was about half the time. I became expert at crawling underneath...
Forum Discussion
Housted wrote:
Several of us have added a 3 D battery assist to up the voltage to the Drainmaster valves.
Really helps the valves if they have not been used for a while. very simple to do.
Housted
I saw a thread on the 4.5v D-cell power boost on this forum and considered it, even researched battery holders on Amazon. I decided to go with the switches as Amazon had them for $2.70 each as some kind of add on item. The LED "open" indicators were a little spendy. The project was around 40 bucks including wire terminals and a mounting box, less than half the price of new factory switches.
