Dump Question Grey / Black Valve

Howittzer

Member
Pretty sure I know the answer to this but I'll ask to verify.
We just purchased a 2021 Heartland Mallard M33.
During the walkthrough and delivery they never went over which is grey which is black.
Our last RV, Grey was left, Black was right.
Can I assume this is the same on our new M33?
They are not labeled, the manual has nothing about it, I just want to make sure I get Black first.
Oh, and Heartland, suggestion, labels help.
 

cmalberto

Member
To answer your question, I would suggest looking at sewer hose connector and then the pipe...Can you tell from there which has the 4 inch side(black) and the other smaller pipe that routes to the sewer hose connector?

In my case, my Gray #2 and Black were mislabled and had to be reversed. Glad we found that during the PDI. Worse for me is the Black pull is leaking and the Gray #2/Black sensors are backwards in the coach. Just adding to my list of things to fix when I bring back in a few weeks.

P.S. I have never see a NEW trouble-free RV.

--Mickey A
--2020 Heartland Elkridge 38MB
 

boatto5er

Founding VA Chap Ldr (Ret)
Put a clear connector on the sewer pipe. You’ll be able to tell which is which.


Sent from my iPhone using Tapatalk
 

jerryjay11

Well-known member
Yeah! Labels don't mean nothing. Our RL250 is labeled as left - black and right - gray. Was I surprised to find out it was the opposite. I like the clear fitting so I can see what is or isn't coming out.
 
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