Replaced toilet flapper- now have black "dirt" after flushing


Old 09-28-17, 06:24 PM
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Replaced toilet flapper- now have black "dirt" after flushing

My husband just replace a flapper on one of my toilets. Since this replacement I now have this black looking "dirt" appearing in the bowl. It has happened since it we starting flushing. It can be cleaned, but it comes back. I have never seen anything like this before. My husband has checked inside the tank, but he couldn't see anything. Can anyone helps us in figuring out what this could be? The toilet in my other bathroom does not have this issue.
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Old 09-28-17, 09:20 PM
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Flappers are cheap. Buy a different brand of flapper and see if you still have the problem.
Old 09-28-17, 10:16 PM
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Look at the sides of the tank. Are they black?
Old 09-29-17, 12:21 AM
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Maybe the flapper is working very well and flushing out all the grunge that's accumulated under the lip in the rinse holes and molded in water pathways? Does it seem to flush harder or longer than it did before? Try a cup of bleach in the tank, let sit for 10 min (no longer, it can harm rubber parts if it just sits there), flush. Wait 10 min and flush again with plain water. Repeat bleach treatment. See what, if anything, changes.
Old 09-29-17, 05:44 AM
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It is common when doing work in a toilet tank to stir up the sediment. Look inside the tank and you'll probably see the crud that's getting washed down into the bowl. After a day or two of use it should stop.
Old 09-29-17, 05:13 PM
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If it doesn't stop within a short time as Pilot Dane says, be sure no sewage's backing up into the toilet trap section. This will show signs of black slimy silt.
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