Skip to main content ↑ ↓
Topic: Black or Grey tank (Read 648 times) previous topic - next topic

Black or Grey tank

Any ideas on which of these is the Black and which the Grey tank on my '95 U240?

Re: Black or Grey tank

Reply #1 –
Are your tanks full? If not just open one valve and flush the toilet if you see water then you'll know. On my 88 the black tank was on the left if your tank is on the left or driver's side It is also that way on my 2000.

Larry

Re: Black or Grey tank

Reply #2 –
The bigger of the two tanks will be the grey water

Re: Black or Grey tank

Reply #3 –
Quote from: Townrestor –
Are your tanks full? If not just open one valve and flush the toilet if you see water then you'll know. On my 88 the black tank was on the left if your tank is on the left or driver's side It is also that way on my 2000.

Larry
That's my Backup position. The black tank is almost empty. Very little use since I got the MH last May. The grey is 1/2 full and the the Fresh water is about 1/2 now with Clorinated water.
Where I am I can run the grey into the dirt, not the black!

Re: Black or Grey tank

Reply #4 –
Quote from: craneman –
The bigger of the two tanks will be the grey water
They seem to be the same side. If I were designing it, I would have the Grey on the right to help flush the black after,

Re: Black or Grey tank

Reply #5 –
the specs. say 55 gal. black water 80 gal. gray measure the width they must be different.

Re: Black or Grey tank

Reply #7 –
Usually dumping your gray tank on the ground would be frowned upon....nasty stuff in there.

Re: Black or Grey tank

Reply #8 –
Most likely the tank directly under the toilet will be the black tank.

Mark

Re: Black or Grey tank

Reply #9 –
I must say I really like dumping my potable into the gray tank and with the third valve backwashing the black tank. It makes a huge difference in the drain water clarity
Scott

Re: Black or Grey tank

Reply #10 –
Quote from: Cpt_kludge –
Tanks are behind panels.
So, remove the panels, on one end of the wet bay or the other.  Whichever looks like the easiest job.  The "beauty panels" are just in the way of seeing what is really going on in that bay.  It's much nicer to be able to visually inspect the plumbing and watch for leaks.

Re: Black or Grey tank

Reply #12 –
My guess  is that the port closet to the toilet , is the toilet. 

Re: Black or Grey tank

Reply #13 –
On our 95 U240 SBID floorplan, the black tank is the one on the right (rear).

Re: Black or Grey tank

Reply #14 –
OK, Got a clear 90° fitting with an adapter and took a chance . Turns out the Grey (Mostly H2O as I added some bleach and flushed the tank and lines) is the one in the center of the compartment. Black is all the way to the right. I live in the woods so just ran the Grey down the hill! Thanks for all the help:)