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Old 04-13-2022, 02:32 PM   #1
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Join Date: Mar 2022
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Question Cottage 40CRS - Dump Valves

I am buying a used 2018 Cedar Creek Cottage 40CRS, no manuals.

It appeared to have 3 dump valves. One I believe for the washer holding tank toward the front where the bedroom is, then the grey and black water valves a bit further back. Everything is enclosed underneath so I couldn't see how it was plumbed.

When parked, am I correct to assume I just leave the washer dump valve open, and it will flow through to sewer?

I am just wanting to make sure there is not some sequence in which valves need to be opened. I do often save some grey water to flush out the sewer hose after dumping the black tank (which is never left open).

Mainly making sure there is not some "gotcha" I am not seeing.

Thanks!
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Old 04-13-2022, 02:50 PM   #2
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It should have level indicators on all tanks. Normally don't dump tanks until 2/3 full. Holding tanks are meant to hold water - not just pass water through them. Even if you are "permanently" parked.
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Old 04-13-2022, 04:46 PM   #3
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I was suggested keeping them closed and release at 3/4 of a tank to help flush any solid waste materials.
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