Out of necessity, I found a new and simple way to flush out the black tank without any water connections or modifications except one, one time! This is a VERY simple modification and anyone can do it in less than a minute! Really!
This is how easy it is! Twist on ONE clear fitting and ONE waste valve to your waste!
You’ll see this graphic is named Temporary fix and I’ll tell you why. While camping, I developed a leak in the black tank valve. So I quickly jumped on Amazon and bought the twist on valve to stop it. I had it delivered to the campground overnight.
Little did I realize at the time I creating a whole new waste dump process!
So you’re probably wondering why you need this, right? Well I got a brainstorm when I was about to do my regular dump at the end of the camping trip! Why not use the gray water to flush the black tank?
Stay with me now! Pure genius ahead! 🙂
- Attach the clear fitting to your waste port
- Attach the twist on valve to the clear fitting and your sewer hose to the twist on valve
- Open your new valve and then open your black tank as usual
- Wait until the black tank flow stops and then close the TWIST ON valve (leave the black open)
- Now, with the black tank OPEN, open the GRAY WATER valve and watch the water rush into the black tank! As soon as it starts to slow, maybe eight or ten seconds, CLOSE the gray water only.
- Open the TWIST ON valve and watch yet ANOTHER batch of black water rush out!
- Repeat from STEP 5!
Repeat as many times as you want! I do it five or six times and the black tank water actually starts running CLEAR! Once you have done this once or twice, you’ll see the pure genius in this invention! With the black tank empty and the twist on valve closed, the gray water has no place to go except up the black tank plumbing!
Valtera T58 Twist on Waste Valve – Amazon Prime – $23.39
Camco 39562 Clear 3.5″ Sewer Hose Adapter – Amazon Prime – $8.79
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