Ion a black water tank it could simply be leaking from around the 3 inch pipe from the toilet or the smaller vent pipe requiring nothing more than new sealant.
Rv black water tank valve leaking.
The logic behind this is that if one is broken it may not be that long before the other one goes bad.
If a vent pipe were to drop it usually drops into the tank through a rubber tank fitting.
Another tip you should consider if the black water valve is leaking you might want to go ahead and replace the gray water valve at the same time.
In some cases the 1 5 inch gray valve gets sticky over time especially if the rver is not using his rv full time.
If it s noticeable driving down the road it can result in a citation and fine as well.
That will be the smaller wastewater valve.
Most rv parks and campgrounds are absolutely phobic when it comes to the issue of a leaking black water tank drain valve.
Leave all valves open overnight or long enough for the waste pipe to drip completely dry.
You can check the vent pipe from up on the roof.
Sewage from the black and gray water tanks are plumbed to this valve to allow you to dump the waste at an approved dumping station.
It holds dirty water from your toilet.
The rvers are usually referring to the black 3 inch gate valve on their black holding tank.
Run about 5 gallons of water into the gray water tank through the kitchen faucet.
Some rvs might lack the grey tank the black tank contain all the dirty water from the kitchen sink toilet and showers.
This may or may not cause an actual tank leak.
The drain valve or your rv s dump valve is the spot where all your plumbing pipes for the holding tanks come together in your rv.
Close all valves then go back inside the rv and add several gallons of water to just one tank.
Did any water leak out.
The contents inside the valve dry out causing the valve to stick.
Wait about 30 minutes then head outside and slowly uncap the waste pipe.
To determine which valve is leaking you should have your rv waste tanks empty.
Proper method of lubrication.
In this article we shall focus more on the black water.