It removed nearly all of the grout from the black floor tiles - 190 large ones, with just brushing using a stiff garden broom. This was after several days. One litre of the fluid went a long way. It fizzed on contact with the grout and then after the specified time we washed it off. Laborious, but not particularly hard work. We had tried another product from a local tile shop that did very little; so I was surprised when this worked so well.
Verified purchase: Yes | Condition: New
useless, very weak acid solution for the basic diy market. Brillo pad was more effective
Verified purchase: Yes | Condition: New
Got grout out of the grain well, but still took a lot of times to get the milky film off the tiles
Verified purchase: Yes | Condition: New
I was dubious as it was almost half the price of similar products. Does the job it’s supposed to do very well
Verified purchase: Yes | Condition: New
Very good product, goes a heck of a long way, removes grout residue and clean up tiles - spot on.
Verified purchase: Yes | Condition: New
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