toilet smell

[RogerRoger]

I've suffered through a very similar situation. I installed a fancy roof vent, cleaned the system, disinfected the traps, all to no avail.

The toilet base gasket is an foam piece that takes a set over time. I replaced this gasket and voila! Sink solved.

This may not be your problem but it's worth a look.

.

[Cat320]

If your P traps work correctly, your toilet/sinks are properly vented and all the plumbing is properly installed, there will be no odor and you do not need any type chemical.

[f1100turbo]

Originally Posted by Cat320

If your P traps work correctly, your toilet/sinks are properly vented and all the plumbing is properly installed, there will be no odor and you do not need any type chemical.

Rv toilets don't have p traps.

[JFXG]

Originally Posted by f1100turbo

Rv toilets don't have p traps.

No, they don't...... but they have an effective water trap as long as the flush valve will hold water. Good water seal = no fumes. No chemicals needed. No deodorants needed. Sewage decomposition is an aerobic process. Plenty of water into a closed tank + good tank venting + regular empty and flush = Clean system op with no excess fumes.

[mel s]

Originally Posted by fastcat

A cheap, easy cleaner for your tanks is about 1/2 cup Calgon water softener and 1/2 cup cheap powdered laundry detergent. The Calgon is a surfactant that allows the detergent to work, and it does.

Then some type of venturi or Cyclone roof vent to draw the odor out the top instead of into the coach.

We also had a loose vacuum breaker under the kitchen sink that never got screwed in tight by the factory. That contributed to some odors. Just a couple turns by hand and it now functions correctly.

http://cdn.irv2.com/forums/attachmen...1&d=1295899922

Very few RVs have vacuum breakers under the sinks.
Vacuum breaker: https://www.google.com/search?q=vacu...iw=820&bih=354

Many do have mechanical vents.
Mechanical Plumbing Vent: Mechanical Plumbing Vent on eBay!

Some have none.

[mel s]

Originally Posted by Barbaraok

I'll bet that what you are smelling is the grey tank because that is where the pipes from the w/d go.
Barb

Not all RV washers drain into the grey tank.
Mine drains directly out of the 3" sewer hose connector, into neither tank.
Mel
'96 Safari

[mel s]

Originally Posted by cusiyc

we have just bought a 2000 HR endeavor. the smell from the toilet is awful. we've used 2 different kinds of deodorizer and still the smell persists - and we mostly use the camp cans instead of the RV. do holding tanks need regular replacement? does anyone have any suggestions? the storage space that should have a washer/dryer is the worst. we use it as a closet instead. the pipes in there are capped. hopefully, someone will offer a solution.

cusiyc
From your description, I suspect the p-trap in the unused washer drain pipe has no water in it.
Pouring in a couple of cups of water once of twice a year may cure your problem.
Mel
'96 Safari

["007"]

Welcome to irv2.
Look down the toilet hole do you see the pipe and its a clean run into tank.
Reason I ask if the pipe to tank was not glued into floor flange when you dump the toilet some water may go in tank and some will go to top of your black holding tank and just smell up the tank area and any vents added will not help much.

You also have not said what toilet you have if its a Sealand type of toilet it has a steel band around the toilet that has to be tighten. If its not tight water will escape from the toilet bowel and proceed to floor flange seal and its rubber will absorb all that fluid and smell.

In either case will require the toilet to be removed and new floor flange seal placed, clean up the overflow mess with bleach and if its the toilet pipe carefully pull up pipe from holding tank, in order to not brake that seal, until you have enough pipe to glue it into the floor flange.

[Cat320]

Originally Posted by f1100turbo

Rv toilets don't have p traps.

True, I should have worded it differently...however, the sinks do have P traps. The bottom line is that if all the plumbing is working as it should, there will be no odor from any of the plumbing system. RV deodorant is a money making scheme for the makers of camping supplies, just like RV toilet paper.

[mel s]

Originally Posted by Cat320

The bottom line is that if all the plumbing is working as it should, there will be no odor from any of the plumbing system. RV deodorant is a money making scheme for the makers of camping supplies, just like RV toilet paper.

!