#patioblackspot #satisfying #pressurewashing

Another challenging black spot removal job. This didn't come out as well as i'd hoped, but turned out pretty well considering how old and prolific the black spots were.

The chemical used to clean this paving is sodium hypochlorite (SH) and can be purchased from Amazon, here's a link https://amzn.to/3UVErTU

Thanks again to Lee ‪@BlastAway‬ for the advice on the difficult rust stains, it was much appreciated.

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