Learn how to remove a bad odor coming from your sink or shower drain. Find out how to apply a mildicide to the inside of your pipe to eliminate the coating of bio-film that's causing the bad odor.
LESLIE: Alright. Now we’re going to help Jackie tackle a mysterious odor in the bathroom  and I promise you, it’s not coming from where you think. (Tom chuckles) Jackie, welcome.
JACKIE: Hi. Hey, this is really a mystery and I’m glad you’re answering our call because my daughter – who’s not on the line with me – but she has had this same problem at her house.
JACKIE: It started at my house, originally, where I have this strange odor coming from the sink. I’ve finally identified it was from the sink and it smells kind of moldy and I put a HEPA filter in the room – big, you know, clean room-type HEPA filter  – my husband is into surplus – and that didn’t help. I put a little Clorox down the drain and I think it must have helped because I haven’t noticed it since but then she had the same thing in her bathroom. Hers is a little more complicated.
TOM: Actually, it’s called bio-film and what happens is …
JACKIE: Oh, I see.
TOM: … you get a growth on the inside of the pipes; it has an odor associated with it.
TOM: And what you need to do is use a mildicide and you need to actually sort of remove the drain or pull out the stopper – and maybe with something that’s like a bottle brush, you’ve got to sort of scrub the inside of the trap because the bio-film pretty much grows on the inside of the pipes and this will happen with showers and sinks. And it does make it stink really bad.
JACKIE: Oh, it’s horrible.
TOM: Yeah, (Leslie chuckles) well that will straighten it up.
JACKIE: Oh, great.
TOM: Alright, Jackie. Thanks so much for calling us at 888-MONEY-PIT.