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Old 04-26-2015, 09:09 AM   #1
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Another gray tank question

We just upgraded to a 2015 32TSBH with two gray tanks. I thought one tank serviced the kitchen and the bath, but after one day of use (without using the shower/tub), the grey began overflow into the tub. When I draining the tanks, only one contained water. Anyone know how the two tanks work on this model? Thanks.
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Old 04-26-2015, 09:48 AM   #2
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My 30.5 has twin tanks as well. One for the kitchen, one for the bath ( tub and sink). Never had any cross flow issue. I was told they were separate
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Old 04-26-2015, 06:49 PM   #3
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Thanks for the response. We just got home from our first trip with the new camper. Only one gray tank collected water all weekend. Wondering if something is plumbed incorrectly or what. I am skimming through the owners manual now, but I dont see anything related to gray tanks yet. Other than that, we love the camper, and I dont miss our problematic Keystone a bit.
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Old 04-26-2015, 07:01 PM   #4
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ours has 2 grey tanks but one is only for our washer dryer hookup ... the other is for all the kitchen and bath grey water ... is yours set up for washer hookup.... you can leave the cap on and equalize the 2 tanks by pulling both valves if that helps
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Old 04-26-2015, 07:09 PM   #5
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I dont think it has a washer/dryer hookup. The salesperson told me that one tank was for the kitchen and the other was for the bathroom. My unit has only a single waste drain, so I dont have the option of the keeping it capped. Thanks for the response.
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Old 04-26-2015, 07:14 PM   #6
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Do you have three separate valves to empty tanks? 1 black, 2 grey?
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Old 04-26-2015, 07:17 PM   #7
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Quote:
Originally Posted by Jmooney View Post
Do you have three separate valves to empty tanks? 1 black, 2 grey?
Yes. It has 3 separate valves, but one sewer connection. After I noticed the water in the tub, I opened the other gray valve, but no water discharged. Only until I opened the second gray valve did the water in the tub drain.
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Old 04-26-2015, 07:20 PM   #8
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if you didn't use either the tub or bathroom sink, then there is no reason for water to fill that tank unless it is plumbed incorrectly

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Old 04-26-2015, 07:24 PM   #9
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We eventually used the tub and bath sink but no water accumulated in the second tank. The tub overflowed prior to us using the bathroom (we rewashed all of pots, pans, and dishes. they were sitting in the garage for a few weeks while the new unit was being prepped). That's why I think it is plumbed incorrectly.
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Old 04-26-2015, 07:31 PM   #10
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Well a good series of tests can confirm your assumption. Don't assume that the tank level lights work or are accurate, but open one grey valve at a time and start running water to see where it is flowing.

It will be interesting to see what you find
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