hi, recently i have found small black bits in the cold water in the bathroom the bits are soft and can be smudged away.my supply comes from the tank in the loft.can anyone help please.
Rubber that falls apart tends to be harder than new rubber, that is why it falls apart.
You are most likely dealing with something that was alive at some point and has died since.
Depending on how squeamish you are, the solutions vary from don't worry and use a bit more toothpaste to get rid of the taste of dead things, to converting all the taps to clean mains fed water.
I would certainly empty it and scrub it out, wipe round with bleach, rinse, re-drain it using the COLD bath tap (don't use the hot tap or you will draw the corpse into the cylinder.
Make sure your hot water cylinder is hot at 60C or more, at least until you have finished the cleaning, this will prevent most bacteria from multiplying.
I have a feeling you haven't got a lid on the tank. Get one.
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