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smelly sink

Yahoo Message Number: 112176
I have an odor in one of the bathroom sinks. It does not stink all of the time. I have replaced the valve in the cabinet under the sink. It has me baffled. I even replaced the replacement thinking that maybe I had a defective one. After it has sat and not used for a few hours I turn on the faucet and get a nasty smell. I can turn off the water and then turn it back on and it doesn't smell at all. I removed the trap and it was clean and full of water. I removed the drain from the sink down to the trap and cleaned all of that. My sink drains very quickly like it should. I checked for leaks from the trap and it is not leaking. If the trap is full then there is no way a smell should be getting past it. Is there anything else besides a faulty vent that could be sucking water out of the trap and allowing odor to get through? This has me baffled.

-Dennis Holmes
2006 Intrigue
#12055

Re: smelly sink

Reply #1 –
Yahoo Message Number: 112177
Also, this problem is when I am sitting still, not going down the road. Also, has anyone had better luck with a different type of anti siphon vent? I replaced with a flap style like was on it and seemed to work for 11+ years.

-Dennis Holmes
2006 Intrigue
#12055

Re: smelly sink

Reply #2 –
Yahoo Message Number: 112178
Sorry, I keep coming with more comments. I don't detect the smell when I stick my head in the cabinet. Just coming out of the sink.

-Dennis Holmes
2006 Intrigue
#12055

Re: smelly sink

Reply #3 –
Yahoo Message Number: 112179
Is it possible that is your source water with the smell? Not all water sources are equal and some can smell while still being safe.

Ray

Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone

Re: smelly sink

Reply #4 –
Yahoo Message Number: 112183
I thought about that possibility. It doesn't really smell like sewage but more of a sulfur smell. I suppose it is possible but I'm only smelling it in one sink. I don't smell it in the other bathroom sink and the kitchen sink. Also, after the water has run for a little bit the smell goes away.

-Dennis Holmes

Re: smelly sink

Reply #5 –
Yahoo Message Number: 112184
Look down under the sink for another pipe going up and ending toward the top of the cabinet. Many CC's had an air admittance valve. They do go bad from time to time

studor air admittance valve

Go get one of those plastic long 18" or so drain cleaners, and pull out as much of the hair and gunk as you can. Remove the drain stop if needed. Then put it back in, and move to the next step.

Get a box of baking power, and a gallon of white vinegar. Dump several large table spoons into the sink drain, we try to get 4-5 of them shaken down pass the drain stop into the trap area. Then slowly pour the white vinegar down the drain. It will fizz up, and when it stops, add more. Keep doing this unit know more stuff comes up.

If you want, while doing this, have a big pot of water on the stove and bring it to boil. Once you're done with the fizzing up of the baking soda/white vinegar, slowly pour the hot water down the drain.

If the cleaning to of gunk, and baking soda fizz does not stop the odor, good chance it is the air admittance valve. Check the size diameter, go buy one at Home Depot or Lower, and replace it.

If none of those steps work, slowly increase both the quality and qty of scotch, until you don't notice the odor:)!

Best of luck to you,
Smitty
04 Allure 31017
04 Allure Sold to a nice new owner! Now enjoying a 07 Magna Rembrandt 45' ISX600 #6775
"We're ONDROAD for THEJRNY!" (Toad and Coach license plates, say Hi if you see us!)

Re: smelly sink

Reply #6 –
Yahoo Message Number: 112187
Smitty: I like the scotch idea! I have replaced the air admittance valve although I didn't use a Studor. I even replaced the replacement thinking maybe I got a defective one. Maybe the Studor would work better.

-Dennis

Re: smelly sink

Reply #7 –
Yahoo Message Number: 112199
By chance is the odor coming from the overflow drain hole? I sometimes get an odor from the bathroom sink and believe it is coming from the overflow hole.

pete
2000 40' Magna CAT C-10, #5892
Pete
 2000 40'  Magna #5892  CAT C-10

Re: smelly sink

Reply #8 –
Yahoo Message Number: 112200
We sometimes get a smell from the sink overflow holes (our replacement sink has three) too! Usually it helps to force a high pressure (hose pressure) water stream into one hole with the other holes plugged - with fingers. This typically results in some nasty looking black stuff backing up through the normal sink drain.

Still haven't figured out an easy way to thoroughly kill whatever has taken root in the overflow chamber.

Hope this helps.
--
Tom Harsch '02 Allure #30791
Rapid City, SD

Re: smelly sink

Reply #9 –
Yahoo Message Number: 112204

sulfur smell is from the fresh water not the waster side.

Fill your tank add 1 oz of bleach and try that and see if the smell goes way.

Mikee

Re: smelly sink

Reply #11 –
Yahoo Message Number: 112386
I think I have this resolved. Thought it may help someone else down the road. We had a hose rupture a couple of years ago. We couldn't find a hose like it so we made our own. We used hose from Home Depot and then put brass fittings on both ends of it to match the original except the original did not have brass fittings. The disimilar metals caused galvanic corrosion on one end of the hose. We replaced the brass fittings with a plastic one. We still had the smell so ran fairly strong bleach through it and let it set for 6 hours or so. Did this a couple of times. Still had the smell. We then ran straight vinegar through it and let is set for 6 hours. Did this a couple of times. We don't have the smell now. It has been a couple of days. Hopefully we have resolved it.

By the way, the hose that ruptured was under the lavatory by the drivers side rear slide. There is a long hose that connects the water line to the faucet supply hose under the sink. It runs through a "V" device that opens and closes with the slide. Quite the "bugger" to replace.

-Dennis Holmes
2006 Intrigue
#12055