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Old 02-11-2018, 11:02 AM   #11
Junior Member
Join Date: Feb 2018
Location: Quitman
Posts: 3
Our 2018 Hideout 28RKS has 2 grey water tanks, the black water tank + the fresh water tank. The grey tank for the shower and the black water tank are plumbed to the same drain location and and have separate valves. The grey water tanks for the kitchen has its own drain valve and sewer connection. Yes, you have to dump twice or have a wye connection and 2 hoses. That fresh water tanks has its drain tucked up out of the way and right at the corplast bottom cover. All of the waste water drains are on the same side of the trailer.

RickSidebottom is offline   Reply With Quote
Old 02-11-2018, 12:16 PM   #12
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Join Date: Feb 2018
Location: San Antonio
Posts: 21
So I have to have a Y connector to flush the Grey water tanks? I think I'll buy a gate like I had on my Jayco 265RLS. Then I can always see if that second tank is full without having to Un-Cap a tube full of Grey water.
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Old 02-12-2018, 10:07 PM   #13
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Join Date: Feb 2018
Posts: 2
We had a 15 rli when we were parked for any length of time I put a short hose on each of the pipes black and gray and hooked them both to a Y valve then to a line to the sewer dump. Both grey tanks dump through one valve,yep thatís how keystone does it,you just do them like this or one at a time.it should be one hookup and two valves,black and grey.its dumb.

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cougar, keystone, tank

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