Good Sam Club Open Roads Forum: Draining gray after black tank washer/black tank combo
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 > Draining gray after black tank washer/black tank combo

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Taxman2436

Holden, MA

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Posted: 05/01/21 04:24pm Link  |  Quote  |  Print  |  Notify Moderator

I have always tried to drain a near full gray tank after the black tank. We recently purchased a 2021 Salem Hemisphere with washer/dryer and the black tank shares the outlet with the washer drain. We don’t always use the washer when it is time to drain the black so wondering if anyone has a way around this.


Taxman2436
Holden,MA
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The Western States

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Posted: 05/01/21 05:54pm Link  |  Quote  |  Print  |  Notify Moderator

Install a tank flusher in the black tank or use a cleaning wand in the toilet.

The reason we drain the black tank first is to clear out the drain hose with the grey tank water, nothing to do with flushing the tanks.


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Posted: 05/01/21 06:00pm Link  |  Quote  |  Print  |  Notify Moderator

Don’t hesitate to fill both tanks just before dumping...black then grey...if water is available.


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Taxman2436

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Posted: 05/02/21 06:06am Link  |  Quote  |  Print  |  Notify Moderator

Well, that makes sense. I do have the black tank flush and that will take care of it. Thanks for that!

kellem

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Posted: 05/03/21 09:00am Link  |  Quote  |  Print  |  Notify Moderator

Perhaps a minority here as I pull both valves " black and gray " at the same time.
What I've found is a vacuum effect is created at the Y connection and black tank has a much better disposal rate.

I do however spray out the slinky.

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