So I live in an appartment, the upstairs of a house. Everytime I go to brush my teeth all I can smell is POO! I know this is disgusting and I don't know what to do about it???
If you live in the UK then bathrooms usually have water supplied by a tank hot from the tank in your airing cupboard which is mains fed, cold is usually supplied by a tank some times in the loft which can become contaminated although this is mains fed there is a loose lid which could become dislodged I have heard of dead birds in cold water tanks. Worst case scenario is that your tank has been contaminated on purpose. Speak to your management company or health department and explain the problem, in the meantime use bottled water to brush your teeth and ask other residents if they have a similar problem
it could be that your sink has'nt got a p.trap.. or a u.bend at the back under the waste outlet.. [check this]. and perhaps they've run the waste into the toilet waste pipe.? this would make it smell like poo.. fit a water trap to your sink outlet.. a p.trap. or u. bend. available in most hardware shops for 5/10 quid.
you could buy on eof the expensive pain in th butt filters...or just call the apt maintence folks. I had this happen, and just took a glass of water to them and told them to check it out. It has a lot to do with city vs. well water also. The city puts some icky stuff in the water sometines, and sometimes there can be gunk in the pipes. Either way, I wouldn't worry about it harming me, though I would be having the apt people get it fixed. Not a great way to start your day, I imagine... read some of the info on this page as well...