Скачать или смотреть Pressure Cleaning Pool Cage Power Washing Deck by Chuck Bergman

http://www.bergmanpressurewashing.com/
Cleaning a very algae infested pool deck. That's what the black is you see on your deck, as well as pool enclosure, house aluminum trim, walls, driveway, side walk etc. Not dirt-mainly living, black algae-more technically, a bacteria. Look up "Roof algae bacteria" on Wikipedia.I have 25 years experience and have learned that using a very high pressure, common would be 3500 psi is not only unnecessary, but damaging to painted walls and even aluminum pool cage framing / house fascia / gutter faces etc, because there is usually some paint chalking on those surfaces. If hit with a high pressure, it can take it back to, or near to, bare aluminum in spots.I cut my 4000 psi machine down to 1200 psi, but I buy special high volume pumps, so the water flow is at 5.6 gpm. That water flow helps clean surfaces without the need of high pressure. I do turn my machine up to 4000 psi for flat concrete, like driveways, sidewalks and parking lots and often also use a "Flat Surface Cleaning Machine" in conjunction with that high pressure, to make your cement look as new as is possible. Look up on Youtube "Bergman Driveway Cleaning"
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