The drain in the sink which we use for mouthwash consistently gets clogged by a very repugnant slime. I've tried all the common drain unclogging products (Drano, Liquid Plumber) as well as some non-standard remedies (e.g., boiling water, vinegar + baking soda), but none of them seem to help. Which means that once a year I have to disassemble the entire drain/trap assembly and manually scrub out the pipes. Can anyone offer another remedy?
(Note: as I've mentioned, this only happens to the sink where we use our morning mouth wash. We tried using a different sink -- to confirm the theory -- and sure enough, the bio-slime began to build-up in that sink instead. It is apparently caused by the bacterial discharge that is expectorated with the mouthwash.)
UPDATE: I've discovered that the slime only seems to grow in the presence of water. So my initial habit of running the faucet after spitting was actually counter-productive. I now resist the urge to rinse out the mouthwash and it seems to have solved the problem.