Stucco Warehouse soft wash opinions wanted

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1

So I have fallen into a ton of warehouse building cleaning. Average warehouse is 62K sqft of cleanable surface (stucco in goodish condition). I’m trying to estimate how many gallons of SH I’ll need. I run a remco fatboy @ 7GPM. I get about 12K of 6% roof mix out of a tank. My questions:

  • Do you think I need to softwash with SH on the sunny side of the building or just rinse
  • I know it’s stucco but minor drip and mold spotting on it makes me think I can do 3 or 4% on the other sides
  • If I only do 3 or 4% using 12.5% base SH what are your thoughts on just downstreaming it from my pressure washer (8gpm @ 3500 PSI)
    I’d be interested in any and all opinions.
2

Downstreaming doesn’t put out a hot enough mix to clean stucco in my experience.

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