Thread Tools Display Modes
Old 02-11-2019, 08:24 PM   #1
Junior Member
Cdmcq's Avatar
Join Date: Dec 2018
Posts: 4
Question Tank vents

Have been experiencing some black tank odour.
Did usual cleaning etc. Went up on roof and put garden hose down the vent with full stream.. no blockage. I was surprised to see only one vent. That means the two grey tanks and black tank are all vented by one vent that is
1 1/2 inch pipe. Never had one vent always have had at least two.
Does your Crusader have one or more vents?
2017 Crusader 31 RST

Cdmcq is offline   Reply With Quote
Old 02-11-2019, 08:42 PM   #2
Senior Member
brookstone345sa's Avatar
Join Date: Oct 2014
Location: Wilmington, De
Posts: 223
Sometimes odors can also come from gray tanks. I had that happen and used some gray tank deodorizer and it solved problem.
Also check air admittance valve, lots of times it's located under bathroom sink or kitchen sink
Attached Images

brookstone345sa is offline   Reply With Quote
Old 02-11-2019, 08:51 PM   #3
Senior Member
heavynlori's Avatar
Join Date: Oct 2013
Posts: 1,274
Our 2014 Crusader 325RES has only one vent on roof

There are two air admittance valves - one under kitchen sink and one under bath sink

Be sure to run water after dumping black and grey tanks to keep water in the P traps

Also make sure you have a cover on your washer drain if you are not using it

Our grey rarely smells and black gets ripe in summer depending on temperature - we are seasonal and dump grey every weekend and black usually every two weeks
heavynlori is offline   Reply With Quote

tank, vent

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


This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 10:50 PM.