Black/Grey tanks
Just an idle question ? Why do RV's have separate black and grey tanks. I have a septic system at home; black and grey wastes flow through the same pipes into the same tank; eventually to the field....
Forum Discussion
RVs use to have just one waste tank......black/grey all went to that one tank
(Small campers/truck campers dumped grey---just a black for toilet)
THEN folks wanted bigger.....more bells/whistles
Space limited so separate tanks
Then more, more........
Space still limited so more tanks added (black/grey/galley)
Then more, more........
So split baths------double black/double grey/galley
There is only so much room for tanks
I have black/grey/galley that all tie into to a common drain header so I added an extra dump valve on that header. (there is a twist on version)
With it closed and all tank valves open I have 128 gallons of waste capacity
Yep.....just like a residential waste system. All together.
They are WASTE tanks. Grey just as nasty/smelly as black----worst due to food debris, grease/oils, hair, sloughed skin, body oils etc.
I run out of fresh water before filling waste ---good for 7 days
(Small campers/truck campers dumped grey---just a black for toilet)
THEN folks wanted bigger.....more bells/whistles
Space limited so separate tanks
Then more, more........
Space still limited so more tanks added (black/grey/galley)
Then more, more........
So split baths------double black/double grey/galley
There is only so much room for tanks
I have black/grey/galley that all tie into to a common drain header so I added an extra dump valve on that header. (there is a twist on version)
With it closed and all tank valves open I have 128 gallons of waste capacity
Yep.....just like a residential waste system. All together.
They are WASTE tanks. Grey just as nasty/smelly as black----worst due to food debris, grease/oils, hair, sloughed skin, body oils etc.
I run out of fresh water before filling waste ---good for 7 days
