A really weird smell, like rotten onions, quite embarrassing because my home is kept spotless everyone comments on the smell right when they walk into the house. There is a shower stall in a bedroom above this entrance but we have snaked it and poured drain cleansers down it and also stopped using...

Help!! When I turn on the airconditioning my whole house smells like cat urine. And yes I do have cats,but this has only started about 1 month ago,and I have had the cats for 10 years

I've owned my house for about 7 years now. The house is about 22 years old. Recently I ve had black particles coming out of the toilet when flushed and also, at times I smell a sewer smell coming out of my kitchen sink. The smell only stays for a couple of seconds. Can anyone tell me what I should...