Great device, but doesn't do as well on grout as expected.

Chemicals stink... literally. But they do a better job for a fraction of the price when compared to this thing. I bought this to clean the grout on a house I'm selling. I cleaned an entire bathroom using acid wash but hated the smell and dangers of the fumes so I decided to invest in something that should have done the same. When I got this item in, I cleaned another bathroom and laundry room with it before the brass brushes wore down to the rim. I went through three brushes before I was done with the entire house (bedrooms were carpet). And when everything finally dried, there was blotches if dirt stains scattered around the grout still. The bathroom that was done using acid wash on the hand, was immaculate. But, I'm sure this will come in handy for other projects. It is easy to use and so far has held up mechanically.

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