tile and grout sealing

https://blast-wiki.win/index.php/Why_Porous_Grout_Cleaning_Matters_for_Your_Tile_Floors

Sealing tile and grout might not be the most exciting weekend chore, but it’s one of those jobs that really pays off—especially in kitchens or bathrooms where moisture tends to hang around. The grout between tiles is porous, so without a good sealer, it soaks up spills and grime like a sponge, eventually turning into a permanent dirty line you can’t scrub out. I learned this the hard way after spending an afternoon scrubbing my shower grout only to have it look dingy again a week later. A simpl…