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Dump Valve Leaking

boosTT
Explorer
Explorer
When back flushing the holding tanks, I forgot to open the T-handle to actually fill the black tank. A lot of water pressure built up in the little 6" section of pipe after the T-handle.

Now I have a small drip coming from the dump valve even when the t-handles are closed and cap is on. It appears to be coming from where you connect the hose (just as if I left the T-handle cracked open).

Is there a easy way to fix this? I was thinking maybe greasing the valve could help a bit?
10 REPLIES 10

lostbytes
Explorer
Explorer
There's videos on YouTube on changing dump valves...

Farmboy666
Explorer
Explorer
Should be 4 bolts, one on each corner. Maybe 3/8 or 7/16 wrench. Pretty straight forward. Don't over tighten it will make valve hard to open/close.

boosTT
Explorer
Explorer
Does the old valve just unbolt?

NMDriver2
Explorer
Explorer
Some end caps only have two bayonet grabbers and some have 4 if yours only has 2 go buy a 4 point cap. Even if you replace the valve the 4 point cap will keep things closed better.
Turret Class traveler

lostbytes
Explorer
Explorer
I usually put a cap with a good seal on it till I get around to replacing the valve. I have at one point put bearing grease into slide groove after dumping one time and it did help but only temp solution at most.

Dick_B
Explorer
Explorer
Bristol is the 2nd one but Valterra is #1.
Dick_B
2003 SunnyBrook 27FKS
2011 3/4 T Chevrolet Suburban
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ksg5000
Explorer
Explorer
Farmboy666 wrote:
Forget rebuilding, thay are less than $15 each. Just replace



x2
Kevin

Farmboy666
Explorer
Explorer
Forget rebuilding, thay are less than $15 each. Just replace

Ron3rd
Explorer III
Explorer III
Buy a rebuild kit and rebuild it. Two major valve mfgs; Valterra and (can't remember the other one). The two are not interchangeable.
2016 6.7 CTD 2500 BIG HORN MEGA CAB
2013 Forest River 3001W Windjammer
Equilizer Hitch
Honda EU2000

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Lynnmor
Explorer
Explorer
Pull it apart and inspect for cracks, then replace the seals or the entire valve as needed.