Mold in sink drain!!!!!

jillyjaxNovember 7, 2009

Six weeks ago, there was a black, powdery mold growing out of a bathroom sink drain. There are double sinks in this vanity. I don't believe I saw the issue in the other.

I closed the drain and made a 50% mixture of bleach and water. It slowly leaked through the "plug". I wiped the residual mold around the drain plug away.

Tonight it is back.

Any suggestions on how to treat?

Do we need to put a new pea trap and pipes above?

The sewer pipe that served this bathroom was broken this spring and since was repaired. Is it related?

It gives me the heebie jeebies...like something from an Alien movie! Please help!

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jillyjax

Updating my concern!

    Bookmark   November 7, 2009 at 11:11PM
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jillyjax

Husband just suggested boiling water down the drain?

    Bookmark   November 7, 2009 at 11:40PM
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brickeyee

How are the sinks trapped?

Common trap or separate?

If a common trap is used check and see it the drain line is partially clogged beyond the trap.
One sink will fill the drain line for the other, and then the water will slowly drain away past the partial obstruction.

Bleach can only kill things that are present, if the source of the mold remains and the line is not cleaned it can quickly return.

You may need a large 'bottle' brush to scrub everything clean.

Unless you remove the trap and close off the line from the sink any bleach solution is going to run off before being very effective.

Boiling water will have the same issue.

Neither will contact the entire surface inside the pipe.

    Bookmark   November 8, 2009 at 9:58AM
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davidro1

do your sinks have overflows? can you post an image onto photobucket and link to it? are the drains a "continuous waste" configuration? Search on this (continuous waste) and let me know.

    Bookmark   November 10, 2009 at 8:30AM
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jillyjax

Thanks for both your help.

I've relayed an incorrect message. There are two separate sinks, 30" apart, with separate drain pipes and pea traps that join in the wall out to the sewer line (which was crushed this spring and then replaced). We had lots of back up in this bathroom's tub and separate shower.

There is an overflow drain in each sink.

Since last posting, we leaned on the hope that the mold was caused by the back ups we had this spring. We tried vinegar and baking soda (foam).

Should I force something to clean the overflow drain?

    Bookmark   November 10, 2009 at 3:50PM
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