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  • Posted in: General Discussion

    Mark, I could ask if they meant 2000-4000 PSI, but based on them considering it "low pressure" I am thinking that is not what they want.  No chemical cleaners are permitted.  The spec states laundry detergent, tetrasodium polyphosphate and hot water.  ...

  • Posted in: General Discussion

    I would check with the architect and ensure that the spec is not off by a factor or ten, they may have just dropped a "0". Over the last 22 years of supplying cleaning crews pressure washing equipment and chemicals we encounter low pressure specified ...

  • Posted in: General Discussion

    I am doing a small restoration project where the architect specified washing to be done with "low pressure spray" they define this as 200-400 PSI, it needs to be measured at the tip.  I have not been able to find a pressure washer that goes below ~1500psi.  ...

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