Thread Tools Display Modes
Old 04-13-2012, 08:50 PM   #1
Junior Member
Join Date: Oct 2011
Posts: 8
Vanity drain

Hi everyone! I have a 2007 378 that I bought last fall and the bathroom sink drains into the black tank. Is this normal or should I modify the drain pipes?

alpinemike is offline   Reply With Quote
Old 04-13-2012, 08:59 PM   #2
Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,321
Just make sure you keep water in the "P" trap otherwise you will get a distinct odor that is very unpleasant.

OldCoot is offline   Reply With Quote
Old 04-13-2012, 09:29 PM   #3
Senior Member
buffalohunter's Avatar
Join Date: Jan 2012
Location: Martinez, CA
Posts: 306
That doesn't sound right to me. Good question!
2012 Rockwood Windjammer 3008 W
2007 Tundra Reg Cab 4X4 SR5 5.7L
buffalohunter is offline   Reply With Quote
Old 04-14-2012, 12:59 AM   #4
Senior Member
jsutherl's Avatar
Join Date: Nov 2010
Posts: 312
In my opinion this is generally a good thing. Because the gray tank almost always fills up long before the black tank does. Also sometimes you can get clogs on the black tank drain because of all the dry matter and little water used when you flush the RV style toilets.

Making the bathroom sink drain into the black tank helps both of these issues. So it's a feature, and one I agree with.

I don't know which tank my sink drains into yet. So far I haven't figured it out.
2008 Georgetown SE 350DS BunkHouse
jsutherl is offline   Reply With Quote
Old 04-18-2012, 11:35 AM   #5
Join Date: Jun 2010
Location: Nestled in the Okanagan Valley
Posts: 39
We have a 2008 Georgetown 378 and I can assure you that our MH vanity sink does in fact drain into the bloack water tank. Also, you should be aware that the vent stack under the vanity is also connected to that tank.
CVan is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:56 PM.