Tank Valves- which one?!!!

[Notroughingit]

We have a '14 240BH. I have read so many threads here and you guys are always helpful. We always seem to have an issue but.. Today I am at the camper alone and my gray tank is full. Wanting to dump it, I look in the manual and no where does it specify which is which. I can't see a label on it either. Wouldn't be the worst thing if I dumped the black but when I called crossroads to ask which is which. They told me it depends on who was working that day and they wouldn't tell me. So for everyone who's valves where switched...there you go! It isn't "standard". Any ideas? While we do like this camper we quickly outgrew it and should not have gone with the bunks. That was a rookie mistake for our needs. Now we are looking for a 5th wheel. I'll give credit to CR for covering the replacement of our skin after it warped due to some faulty sealant at the factory.

[KingFisher]

On my 2016 250rb the left is the black and the right is the gray. I always dump the black first.

[cw3jason]

Mine were switched on my Crossroad and also on my Keystone trailer. the black tank valve on both ended up as the aft most one, but you have a 50/50 chance so give one a pull

[travelin texans]

Pull one, if it's not the one you wanted close it/mark it & open the other & mark it.

[sleepyT]

Notrough
Where your hose connects to the camper waste pipe, do you have a clear plastic extension pipe.??? If not go to the campground store and buy one...Then do what travelin texans said in his post...The clear plastic extension pipe will let you see by the color of the waste water which tank you are emptying...

[r2millers]

Mine also were labelled incorrectly and switched. The inside pull is the black and the outer is the gray. Found out the hard way!
Pretty easy to tell if a regular pull type under the trailer due to pipe size but with a cable system, you have to pull back the underbelly and follow the cables back, unless you do as others have, and get a clear dump valve or end piece to view.

[cw3jason]

Once you figure it out. Paint the handles grey and black

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[Bowler304]

Yea mine were backwards as well on my ST290BH but easy enough to fix, thank God I figured it out before using the black tank flush, that would of been REALLY BAD!

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[travelin texans]

Every rv should have the clear section somewhere on their sewer hose just so you know what/when you've got everything drained, if you've bought the rv another $10-15 won't hurt much.

[harley]

seriously ....you expect the bean counters to subtract $10 to 15 from there profits? lol
Here is another project for Christine to add to her QUALITY ALERTS on the line so the assemblers do no mess up something so simple.....