For serious build-up on tiles or stone, use a commercial limescale remover. These are stronger. They don’t smell like nachos.
Always test on a hidden spot first. You don’t want to dissolve your floor. That’s a whole different kind of woop.
And never mix vinegar with bleach. You’ll make chlorine gas. That’s not fun. That’s a trip to the hospital. Stick to one weapon at a time.
