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Old 05-24-2015, 06:23 PM   #1
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Pinnacle gray tanks

In our 2015 FBTS we have 2 gray tanks for a total of 74 gallons. Are there 2 37 gallon tanks or are they different sizes? Which water goes to each tank? Does all the water from front bath (washer, shower, sinks) go into one tank? What about the downstairs bathroom sink water?
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Old 05-25-2015, 06:17 AM   #2
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We also have 2 grey water tanks in our 33.5RETS. You would need a plumbing diagram to know for sure. However, our bathroom shower and sink, drain from one tank, and our kitchen sink drains from another. We don't use the kitchen sink that much and it fills up really slowly. We can tell which tank is which by monitoring the level indicators. I also have labeled my levers for emptying our tanks so I know which is which when I pull them. I don't guess it really makes a difference. I just like to make sure I have plenty of water from the shower tank to flush the lines when we get through dumping.
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Old 05-25-2015, 07:13 AM   #3
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I believe one tank holds the front bath and the half bath. The other tank is for the kitchen sink.
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Old 05-25-2015, 07:22 AM   #4
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Quote:
Originally Posted by jayfowler View Post
I believe one tank holds the front bath and the half bath. The other tank is for the kitchen sink.
That would be the "logical" way for it to be connected. Our FLSA has 3 one for the kitchen, one for the bath and one for the washer. Kitchen and bath have separate valves but are connected at the same sewer connection. The washer has it's own valve and sewer connection.
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Old 05-25-2015, 09:28 AM   #5
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I have installed one of these handy little devices at the end of the waste pipes. I then leave this valve closed and the two gray tank valves open. This way both tanks fill together and essentially, combine as one tank. The reason I do this is because the shower/bath tank fills up much faster than the kitchen tank.
Amazon.com: Valterra T58 Twist-On Waste Valve: Automotive
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