I just sprayed my bedroom carpet with a solution of 1/2 vinegar and 1/2 water.... toby has been potty trained for a long time now, and suddenly the smell is back... im thinking maybe the cat is marking HER territory over toby's OLD pee spots (the stuff i used before must have not worked all the way..... we couldnt smell any pee but maybe the cat could
) anyways, vinegar isnt harmful to the animals is it????