Dear Mr. Plumbing smart,

It hasn't happened before until over this week that the drain in my bathroom overflows, when just a little amount of water passes through. It overflows when you take a shower, or when you wash your face. I'm not sure if it was because I used a wash liquid to scrub the tiles of my bathroom floor or not.

Could you advise how I must do with it? Thanks.

Regards,
Witaya

Need some help.

There are at least 3 drains in the bathroom: lavatory, toilet, tub, shower, 2nd lavatory, bidet. PS: I named 7.

Which one overflows when which ones are used.

Snake the lavatory roof vent. Put out enough snake to reach the base and 18 feet more. Good luck, Tom