QUESTIONhow to remove sewer stain from tile grout? Commode overflowed during the night.
ANSWERANSWER - It depends on whether the water from the commode was contaminated or not. Category 1 water is sanitary water. Category 2 water is contaminated water to some degree. Category 3 water is grossly contaminated water.
Depending on the type of water and the extent of exposure it might be cleanable or not. If it is cleanable, then you it can be cleaned by using a neutral detergent or one of the tile cleaning solutions with a scrub brush on an extended handle. Let the cleaning solution absorb into the grout for 5 minutes or so, then scrub, then pick up with a wet/dry vacuum, then rinse with clean water using scrub brush, and then pick up with wet/dry vacuum. Then you can buff the floor dry with a lint free cloth. Let the tile floor and grout dry thoroughly, and then apply a penetrating sealer over the grout and tile. Immediate wipe it dry with a lint free cloth to make sure none of the wet sealer remains on the tile surface.
For links to companies who produce and sell tile cleaners and sealers click on the following link: Cleaners and Sealers.