Black tank- dump it or leave it?
Our TT usually stays on a permanent site, which we visit every other weekend or every 3rd weekend. When we depart on Sundays, I usually fill the black tank up with water, since it's nowhere near be...
Forum Discussion
Lynnmor wrote:rockhillmanor wrote:
Dump the tank, add chemicals, and run some water into the black tank from the bathroom sink which usually dumps into the black tank.
I agree with dumping the tank before leaving it. It serves no purpose to leave the stuff in there, for a week or more, when it could be mostly clean water.
The idea of using the sink to add water is not correct for many (most?)RV's, the sink may be connected to the gray tank.
Yup it IS correct for 'most' RV's!
To find out how your RV is plumbed:
All you have to do is dump both your black and gray tanks, close the valve and then go inside and run a good amount of water in the "bathroom" sink.
Then go out and open each tank valve separately to see where the water comes out. Most of you'all will be mildly surprised your bathroom sink dumps into the black!!
THE most common problem to the question:
"Why does my black tank fill up so fast?".....usually 2 adults 2+ kids ALL washing their hands and face, and ALL brushing their teeth with the faucet on like they do at home in the bathroom sink.
All the that water adding to your black tank. :C
AND
As Deb and Ed M stated above. If left parked long periods of time the water in the p-trap in the bathroom sink will evaporate and will allow sewage gas to enter your RV. The answer to the other question of why does my RV smell like sewage! :W
