"I'm doing this." Man demonstrates clever DIY hack to deep clean dirty grout without harsh chemicals: 'My grout is foul' ...

Then I squirted Zep directly onto all the grout lines, no brush needed at that point. Zep recommends application to grout lines only, so I tried my best not to get it on the rest of the tile.

It's conveniently water-resistant, with a small brush head designed to fit into tight corners and small spaces — think grout lines, faucets, window edges, tire crevices. I also knew my own hands ...

Stained grout can really sneak up on you. One minute you’re loving the fresh white grout in your picture-perfect bathroom and the next you’re wondering, "When did my bathroom start looking ...