Holding tanks on Denali 286REX

[edstep]

This may sound kind of basic but, my holding tanks are NOT labeled, They both go into the Polar covering underneath and I cant figure out which is grey water or which is black. This is a 2013 and my owners manual doesnt really clarify my rig, its to generic

I have 2 levers side by side, they are identical in size and color

Any help would be appreciated

[wahoonc]

Run a bunch of water down the sink, then pull the levers one at a time. The one that dumps water is the grey tank.

For some reason mine are color coded...

Aaron

[edstep]

I can try that, I wish they were color coded, they should be

Thanks for the reply

[Nana & Poppy]

When we found out which was which - we spray painted the grey water pull!!!

[edstep]

Went to the dealer today and looked at another Denali (293REX) and the valves were color coded, the one on the right is for grey and the other for the black tank

From what I remember on my old Keystone, the right valve was the grey water

[DesertRat]

Right side is gray on ever trailer I've had with a front bath. Sink from the kitchen would have a hard time draining if it had to go over the black tank to reach the gray. Now if it has a rear bath things are different .