Drain Master Electric Waste Tank Valve Installation with 1 1/2" Adapter
In this video, I upgrade the old manual push rod kitchen drain holding tank valve to a Drain Master electric valve. Back in the summer of 2018, I upgraded both my black and bathroom waste valves to electric. Link to those install videos -
This installation will make all my waste tank valves electrically controlled via remote switches located in the RV's wet bay area. I'm so glad to complete the trio. The galley valve rod handle was located in a hard to reach spot between the tires and under our slide-out room. It was even more of a pain now that we are wintering in our fifth-wheel trailer with RV skirting install all around it.
Disclaimer: The electric valve kit was provided to me free of charge for the install. However, I’m not an affiliate for DrainMaster.com, nor was I monetarily compensated for the review. – Ray
The installation was fairly straightforward, and Drain Master provided top-notch documentation and support. The only tough part for me was the old valve's location under the middle of the trailer between the axles. It made for a cramped working environment.
Luckily I had previously cut an access flap in my Coroplast underbelly to install my SeeLevel tank monitors. It was right beside the galley waste tank output drain pipe. I cut the 1 1/2 inch ABS drain pipe with my Hackzall and install the new electric valve. Since it was mounted so close to the tank, I decided to leave the old manual valve in place and just leave it open.
For power, I tapped into some wiring that was conveniently located nearby. There is a 12V feed right from the RV battery bank and a ground. Both were of sufficient gauge to handle the amperage required. I also added a 5 amp as is required fuse for safety.
Finally, I connected the 4 pin data cable and ran it to where I mounted the power switch next to my other two electric valve switches, and the job was complete.
It's so nice to have all three tanks dumping with a push of a button. My wife Anne loves it. We now have the complete Drain Master sewer solution with their Waster Master hose and storage box, 360 Siphon roof vents, HepVo waterless drain traps, and Electric Pro Valves. Things flow smoothly in our RV!
Links for Related Information:
Drain Master Website -
Waste Master Sewer Hose Hookup & Storage Box Mod -
HepVo Waterless Drain Trap Install -
SeeLevel Tank Monitor Install -
Milwaukee Hackzall Review -
This is an upgrade I am considering. Nice!
Nice video showing your upgrade.I am wondering why you did not just replace the old manual slide valve and ended up leaving the old one in?
It was easier to install, gave me more space and 1 1/2" pipe to work with versus removing the old valve. The old one was installed quite close to the tank output and had size-reduction couplers.
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