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Old 10-30-2015, 10:46 PM   #1
JackRAbbit's Avatar
Join Date: Oct 2012
Posts: 31
Grey water tanks

In our trailer we have separate holding tanks and drains for the grey water and the galley water from the kitchen.somebody told me that I don't have to worry about over filling either tank because there is an overflow connection between the two tanks. This doesn't seem right to me and I don't see a pipe between the tanks. Any thoughts?

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Old 10-30-2015, 11:02 PM   #2
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Join Date: Dec 2007
Location: Pacific Northwest
Posts: 788
I think you are right. I had two separate tanks in a Sunseeker 2860 I used to own, no "connection" between them.....

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Old 10-31-2015, 06:30 PM   #3
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Location: Southwest Alabama
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There's no connection between our grey and galley tanks either, so I'd be careful about it.
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Old 10-31-2015, 06:41 PM   #4
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Join Date: Dec 2014
Location: Aurora, Co
Posts: 127
No built connection between our two grey tanks either. Had the shower fill up through the drain while tank 2 was empty to prove it. Two ways around that. Leave the cap on the black/grey drain and open both grey valves (keep the black shut. The grey water then cross feeds through the manifold. Bad part is when you close all valves and remove the cap, you get about 12-20 ounces of grey water on the ground. Better...they make a second blade valve that attaches to the bayonet fitting allowing you to open and close the grey valves with impunity and the ability to attach the dump hose at will without spraying grey water all over.
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grey water, tank, water, water tank

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