mystery substance in toilet

Old 02-14-23, 01:41 PM
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Question mystery substance in toilet

What causes a milky white substance that looks like cooked egg whites to form at edge of water in toilet bowl?
The substance clings to bowl and does not flush. It has to be wiped out with toilet paper and then flushed. It seems to happen once/twice a week.

Last edited by rebel4fr; 02-14-23 at 01:44 PM. Reason: needed longer message
Old 02-14-23, 02:44 PM
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White substance in water could be calcium from hard water, it's usually a harder flakier material.

Do you have hard water?
Old 02-14-23, 03:58 PM
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Are you on well or municipal water?

Do you use in tank toilet cleaners?

Do you have a water softener?
Old 02-14-23, 04:08 PM
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Does a female use this toilet? Because it's not uncommon for urinary infection or discharge of some type to cause this.
Old 02-15-23, 02:51 AM
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Have you looked in the tank?
Old 02-15-23, 05:19 AM
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I doubt it's caused by a UTI. You and she would be well aware of that before a toilet bowl stain would show. Most likely hard water or similar and high humidity. Weekly (at least) cleaning would be advisable. At certain times of the year, I notice the bowl gets dirtier than other times.
Old 02-15-23, 07:39 AM
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Is this happening in only one toilet? We had a problem with one toilet having really nasty brown slimy deposits under the rim. It was really difficult to remove. It turned that my wife was using one of those "cleaning" tablets in the tank and that was causing the problem.

If this is happening with only one toilet, I would be looking inside the tank.

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