Camper Mod Contest Entries

Stopping Drips with Secondary Dump Valve

Welcome to the first entry in June’s Mini Mod Contest.  One Mini Mod will be published in every Email Alert in June.  At the end of the month, we’ll hold a reader vote to determine June’s winner.  Click here for information about the 2023 Mod Contest, including how to enter.

Stopping Dump Valve Drips

Charles Coushaine, Punta Gorda, Florida
Stopping Drips with Secondary Dump Valve
2001 Ford F350
2012 Chalet DS116RB

If I’m not level when I dump my RV tanks, some leftover water can still be in the pipe. This extra water then makes its way to the sewer cap and comes out without warning on my next dump station trip. To completely solve this problem, I installed a secondary dump valve.

Secondary Dump Valve Attaching Valve

I purchased a Valterra Twist-On Waste Valve and installed it on the end of my dump pipe. I then added a four-inch band clamp around the mounting tabs to permanently fix it and prevent loosening when the dump hose is removed.

Secondary Dump Valve Adding Band Clamp

So far this has worked out exactly as planned. Whenever any leftover water is in the dump pipe, it now is trapped behind this secondary dump valve. I can easily attach my dump hose and pull this lever without any fear of fluid hitting the ground, or me.

Secondary Dump Valve For RVers

Note: A secondary benefit is that it provides a small amount of extra capacity to your grey tank. If you are boondocking and accidentally fill up your grey tank, you can now pull your grey tank lever and fill up the dump pipe all the way to the secondary valve. This avoids your wife from screaming at you from the shower!

Here’s what I used for this mod:

Valterra Twist-On Waste Valve, Mess-Free Waste Valve for RVs

Big Horn 11741PK 4-Inch Key Hose Clamp, 5-Pack

It took me fifteen minutes to complete this modification and cost me $25. In my opinion, the skill level of this modification is easy.

Disclaimer: The modifications above are submitted by Truck Camper Magazine readers. It is your responsibility to make sure that any do-it-yourself modification project you undertake is safe, effective, and legal for your situation.

Enter Your Mods Now!

If you’d like to enter a modification you’ve done on your truck camper, click here. You can enter as many mods as you want, at any time.  Good luck mod makers!


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