We are living in a house that has just been gutted, extended and refurbished. The bathrooms and plentiful hot water supplies are the most essential improvements.
But in the washbasin in the downstairs bathroom, I have noticed that deposits of a black gunge, fibrous somehow but slimy, keep appearing on the lower part of the modern-style plug, the part that goes down the waste pipe. It is the sort of plug that you operate by lifting or lowering a small rod behind the mixer tap, but it lifts out easily and can be examined.
The gunge isn't hair, stubble or face dirt. It seems to sort of grow down there, as if it was an algae or some sort of organic thing. It is quite soft, run the tap over it fast and it comes off in lumps.
Naturally I don't like it much. Has anyone got any idea what it might be? Could it be a health hazard? And if no one has any idea what it might be, how do I go about finding out?
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