Black Tank Odor

[Wolfy58]

We are new to this lifestyle have a 2019 44B the half bath when flushing kind of acts as if there is air and gurgles when flushing and now have an odor? Any suggestions would be great

[MisterT]

if it's the type of 'gravity' toilet that drops the goods directly into a tank below, then you may have the stoppage/pyramid of 'stuff' which creates the situation you describe. You'll need to find a tree branch or something straight to swirl around in there while you have the footlever pushed to eventually get it all to flow down into the rest of the tank.

Now, the answer to future issues is to ALWAYS use plenty of water, water, and did I say water? when you are flushing, period. Nothing else will provide the gravity and 'flushing' power you need to keep this from happening. Push the footlever 1/2 way down for a while and let the water fill the bowl before you flush, and especially if you tend to use a lot of toilet paper.

[brobox]

Check the air admittance valve under the bathroom sink to see if it is stuck. I replaced mine with a Studor vent valve from Lowe's when my coach was new. http://www.irv2.com/forums/f278/had-...ay-220790.html

[Wolfy58]

Originally Posted by brobox

Check the air admittance valve under the bathroom sink to see if it is stuck. I replaced mine with a Studor vent valve from Lowe's

How would I know if it is stuck[emoji33]

[brobox]

Originally Posted by Wolfy58

How would I know if it is stuck[emoji33]

Unscrew it and shake it. It should feel like a ball in there. Even so they don't always seal. I linked a post to my last post that might help.

[Wolfy58]

Originally Posted by brobox

Unscrew it and shake it. It should feel like a ball in there. Even so they don't always seal. I linked a post to my last post that might help.

Thank you so much I will tackle it tmw

[brobox]

Originally Posted by Wolfy58

Thank you so much I will tackle it tmw

You can pick up a screw on direct replacement at Lowe's or Home Depot for less them $5.00 if you want to try that first and see if it is the problem.

[757driver]

On a 44B my guess would be a partial blockage at the elbow before everything drops into the black tank. If your 44B is anything like mine it is not a straight drop. With insufficient water this can get partially blocked and give a bubbling burping when flushed.

Option one is to fill the bowl with about 20 pumps of water (can only do 10 at a time) or fill with a bucket and try flushing.

Option two. Find a curved skinny tree branch and with the switch on the back inside of the toilet base switched to water saver mode push and hold the flush button and the electric valve will stay open to gently poke with the tree branch. Careful not to damage the pipes down to the black tank.

[brobox]

This is one of the handiest things to carry in a MH for any type of drain problem. I picked mine up at a $ stores http://https://www.homedepot.com/p/Z...0400/100665735

[jherrin99]

Originally Posted by Wolfy58

We are new to this lifestyle have a 2019 44B the half bath when flushing kind of acts as if there is air and gurgles when flushing and now have an odor? Any suggestions would be great

Is your tank full? Mine does that when the tank is full.

[Hdmod]

He has a Techma Macerator toilet.....Yes??..........Check under the toilet lid to set the water setting higher maybe for a better flush......otherwise Chuck sounds like he has a good answer on that vent.

[brobox]

Originally Posted by Hdmod

He has a Techma Macerator toilet.....Yes??..........Check under the toilet lid to set the water setting higher maybe for a better flush......otherwise Chuck sounds like he has a good answer on that vent.

The B as does the RBQ has the almost straight drop down electric toilet. Nice for boondocking situations.

[ghaynes754]

Chuck isn't the AAV under the 1/2 bath sink on the Grey water side of the plumbing? Bathroom sink drains into the same pipe? I don't have an Entegra but that AAV on a Newmar is for Grey.

What I did find on mine that was causing the smell was the back flow preventer on the black tank flush. On my Newmar that is also under the 1/2 bath sink. And really does smell up when it fails allowing a backflow of smellaicious odious odors anytime there is a negative pressure in the coach, like driving down the road.

[gizmo123316]

The smell can get really bad if you flush with the exhaust fan turned on. Could the smell be caused by leaving the fan on when flushing?