Skip to main content ↑ ↓
Topic: Black or Grey tank (Read 547 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?
1995 U-240 GrandVilla 36'
FMC# 18675
Lookingglass, OR
"There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." - Ed Howdershelt Abintra Press "If you have to lie to gain Support, you are not worth Supporting" "I just want to go somewhere where there's chocolate and nobody talks." - Ynez Reinschmidt

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
Larry & Debbie Town
2000 U320 4210 
Previous 88 GV

Re: Black or Grey tank

Reply #2 –
The bigger of the two tanks will be the grey water
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

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!
1995 U-240 GrandVilla 36'
FMC# 18675
Lookingglass, OR
"There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." - Ed Howdershelt Abintra Press "If you have to lie to gain Support, you are not worth Supporting" "I just want to go somewhere where there's chocolate and nobody talks." - Ynez Reinschmidt

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,
1995 U-240 GrandVilla 36'
FMC# 18675
Lookingglass, OR
"There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." - Ed Howdershelt Abintra Press "If you have to lie to gain Support, you are not worth Supporting" "I just want to go somewhere where there's chocolate and nobody talks." - Ynez Reinschmidt

Re: Black or Grey tank

Reply #5 –
the specs. say 55 gal. black water 80 gal. gray measure the width they must be different.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Black or Grey tank

Reply #6 –
Quote from: craneman –
the specs. say 55 gal. black water 80 gal. gray measure the width they must be different.
All I can see are the drains. Tanks are behind panels :(
1995 U-240 GrandVilla 36'
FMC# 18675
Lookingglass, OR
"There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." - Ed Howdershelt Abintra Press "If you have to lie to gain Support, you are not worth Supporting" "I just want to go somewhere where there's chocolate and nobody talks." - Ynez Reinschmidt

Re: Black or Grey tank

Reply #7 –
Usually dumping your gray tank on the ground would be frowned upon....nasty stuff in there.
1993 U300 40ft GV SE
Build # 4344

Re: Black or Grey tank

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

Mark
The selected media item is not currently available.
Mark and Tanya
Milton , Florida
US Navy Veteran (DV)
1999 U270 Special 40' CAI , 2015 Jeep Wrangler Sahara

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.

1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

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).
Dave and Kelli
1997 U295 40' Build #5188 CSGI
1995 U240 36' Build #4621 SBID-SOLD
2006 Jeep Wrangler Rubicon
 

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:)
1995 U-240 GrandVilla 36'
FMC# 18675
Lookingglass, OR
"There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." - Ed Howdershelt Abintra Press "If you have to lie to gain Support, you are not worth Supporting" "I just want to go somewhere where there's chocolate and nobody talks." - Ynez Reinschmidt