We had a very old bathroom completely remodeled. Soon we began to notice a
very disagreeable odor coming from the sink drain -- especially strong when
the stopper was removed.
We never observed this in the old one.
My questions are:
1. Did the contractor do something wrong?
2. What can be done about it? (I haven't called the contractor yet.)
3. Is there any danger?
The pedestal should not completely cover it. Bend down, you should see the
pipe exiting the pedestal through the wall, follow the pipe with your hand
into the pedestal and see if there is a trap.
If the pipe does not exit the pededestal through the wall but goes straight
down or down with an "S" shaped trap, this is wrong. Get your contractor to
fix it or call your plumbing inspector to report it.
New sink and all new parts?
With the stopper removed, look down the drain with a
bright light to see if water in the trap is visible
(assumes trap is directly under the drain).
Also, try running the water in the sink briefly
(to refill the trap). If that stops the odor,
the trap may be getting sucked dry, which does indicate
Does the sink drain ever gurgle when draining or when
other fixtures (esp. toilet) are being used?
To answer your question, yes, it's a potential danger.
It could be mold/mildew growth in soap scum in the drain above
the trap. Pour diluted bleach down the drain (and into the overflow
opening). If that helps, you know what the problem is.
I've found that some types of modern soaps seem to support lots
of mold growth. Well water seems to encourage it more than
You might also want to keep any eye down the drain while you have someone
run around the house flushing toilets and running anything that might use
the drain. See if it's possible that air is being forced back up through the
Even without knowing the problem cause, I'd be dumping a tablespoon
of bleach in quart of water down the smelly drain every day. I bet it
fixes the problem.
Home Depot also sells bleach tablets that will last for a month or
On Fri, 12 Dec 2003 15:35:49 GMT, "Ray Jenkins"
">We had a very old bathroom completely remodeled. Soon we began to
">very disagreeable odor coming from the sink drain -- especially
">the stopper was removed.
">We never observed this in the old one.
">My questions are:
">1. Did the contractor do something wrong?
">2. What can be done about it? (I haven't called the contractor yet.)
">3. Is there any danger?
i had a problem like this years ago and it turned out to be leaves in
the vent pipe up through the roof
To Explain Oneself Is A Sign Of Weakness!
Sounds like sewer gas. Funny that's the second complaint of this type in the
last few days. You don't say where you live, but I wonder if the recent cold
snap on the East Coast has anything to do with it. If the vent pipe freezes
shut it can cause a back pressure.
It's not super dangerous but not really healthy either. You certainly need
to deal with it.
Is 'house explodes when methane gas leaks from sink' an urban legend?
[and if it is, we should tell the local fire department who evacuated
an entire hosing development because it was built on a landfill & the
methane started entering cellars]
Methane is probably the worst problem if the OP has his own septic
system. If he is on city sewers, then all bets are off. What happens
when his neighbor empties 5 gallons of gasoline into the sewer grate?
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