Grey Water tank

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Sep 21, 1997
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Hi John

I like your question. I just bought a 76 Glenbrook I discovered I dont have
a graywater tank. We should compare notes. I wonder if I could put your
tank under my rig. Do you have any pics or drawings of the location of the
tank? Sure would like to compare notes.

Take Care
Arch
 
I just got a 1977 Royale that I am doing some repairs on at the
moment. Crawling under the MH, It looks like the Grey Water tank just
has a straight pipe out to the rear of the tank. Is this missing a shut
off valve like the Black water tank has? And if not , why not - seems
you'd be dumping your sink water on your camping site.
Since this is a Transmode/Coachman product, the maintenance
manuals don't describe the tank systems, only the GMC products.

Confused,

John
 
>
> Hi John
>
> I like your question. I just bought a 76 Glenbrook I discovered I dont have
> a graywater tank. We should compare notes. I wonder if I could put your
> tank under my rig. Do you have any pics or drawings of the location of the
> tank? Sure would like to compare notes.

All GMC furnished coaches came with only one tank for all effluent.
I've spent a lot of time under the back of my '73 trying to figure out
how to add another tank. Finally decided that for me it just wasn't
worth the trouble. Back when you could just let grey water drain out on
the ground at primitive camping areas, separating the two made sense,
but I think this practice is frowned upon at most campgrounds these
days. Can't really think of another reason to have separate tanks.

The biggest factor is floorplan(the Royale is a rear bath, and that
probably helps). Inlets to the tank are just holes cut thru the floor
and top of tank, so the layout determines tank shape. If you have the
standard GMC "wet" bath, then you have a grey water source(the shower
drain) and black water source(toilet) next to each other. Tough to
design a workable tank layout for this. You might could add a small
grey water tank aft of the original and just plumb the sink drains to
it, leaving the shower to contribute to black water. Just keep in mind
that any tank back there might be subject to dragging and you would need
to reroute the "dump" line.

Patrick
- --
Patrick Flowers
Mailto:patri63

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