Using Acid to clean?

What acid actually does is ‘eat’ (corrode) away your grout ( tile line) so it gets thinner and thinner. And over time your whole grout will be gone and that causes water reservoir, water leaking issues and worst of all tile to chip/crack at the side or dropping off.

The proper way to clean? Just get it stain proof and water proof so you don’t have to use acid anymore!