Hi again,

Thanks for the info Suzy and Dan. We believe the previous owner changed the gray and black water tanks and put in one large black water tank. The tank is definitely metal. Thanks, and any further suggestions.

Richard

Somewhere in my travels, I have seen/heard that the very high end coaches, like Prevost etc. used one tank for both black and gray water. Anybody cofirm that? If true, I have a 'high end coach' and can brag even more about Barth.

I have a black/grey water tank in my bus.

my 29' '77 coach had one large waste tank. I thought that they just didn't know any better in those earlier days. ..........."top end" ? ....so who knew?

My 1977 has one tank, I think most ealier units have one tank.

Neil.

my 1975 and also my 1985 have one tank

Our "77 21ft has two tanks and the "93 36ft Breakaway also has two tanks.

Bud

My 91 Commercial Barth has 2 waste tanks, black and Gray.

But... the bathroom sink does run into the black tank too.

Our Newell has one sewage tank of 175+ gallons. It has a gray water bypass when hooked up to sewer.

Our 89 Regency has 2 tanks (so Tom says), our bath sink also goes to black, kitchen and shower to grey

Tina

Our 84 originally had only one tank.

quote:

Originally posted by bill h:
Our 84 originally had only one tank.

How many does it have now?

quote:

Originally posted by Neil T.:


How many does it have now?

I had put two gray tanks up between the frame rails (with more planned), but an exhaust leak melted one, so we are down to just one gray tank until I weld up the damage.

At present I am redoing the exhaust, with side outlets forward of the wheels, shorter Afterburner mufflers and an X-pipe. All this will give me more room for more gray tanks. We also have a hose and valve to select directly from the kitchen sink to a Blue Boy.

I believe the idea of having the bathroom sink to run to the black water tank is a safeguard againsed medication (which may be disposed of in bathroom sink) entering the open environment.

quote:

Originally posted by Kris & Tina Jones:
I believe the idea of having the bathroom sink to run to the black water tank is a safeguard againsed medication (which may be disposed of in bathroom sink) entering the open environment.

There are a lot of theories on that. Another is that since we rinse our mouths after brushing, it is biowaste and must be in the black tank. I had a Fleetwood fiver that had the shower plumbed into the black tank. I am sure we could conjure up some rationale for the shower going into the black tank...................
The kitchen sink went into the gray tank, but I don't remember where the bathroom sink went.
My favorite bathroom sink theory is that it allows convenient transfer of fresh water into the black tank to assure enough volume for a vigorous outflow when the dump valve is opened. That is very handy, particularly for those of us who never flush the tanks.