Probably The WORST BLACK SPOT I've Seen On An Indian Sandstone Patio EVER. Can I Remove it??

#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.

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

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