Browse Forums Bathrooms and Laundry 2 6227 Thanks splashers, that makes sense. The waterproofing guy used this Davco product, I will raise the issue with builder and hopefully get resolved with him - if not… 2 13110 Have some black tiles in our bathroom on one feature wall laid on top of the waterproofing. What I think is efflorescence or white chalky looking grout has turned the… 0 2141 |