Official Industry Terminology

Please use this thread to familiarize yourself with common terms used in the pressure washing industry.

Please add to this list of you have a firm grasp on the term and can define it in a sentence or two. Copying and pasting definitions is welcome, as well as pictures. All topics are welcome.

Ex: “SH” = Sodium Hypochlorite or the commercial name “Bleach”. An oxidizer used mainly to wash organic matter from surfaces.

Something like that.

Hopefully this can be used as a reference so the more basic questions do not have to be repeated so much and new people can quickly and easily familiarize themselves with the lingo.


Dang, you’re quick on the draw, lol

HW: House Wash. Oftentimes used to refer to the mix of bleach, surfactant, and water used in low pressure house cleaning.

DS: Down Stream. A method of injecting chemicals after a pressure washing pump at a diluted rate, using a down stream injector.


SC=surface cleaner

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PW = pressure washer

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… … nevermind

Chut>> could have used this>>> as in I could have used this 3 years ago!!

Awsome idea guys!!

GPM = gallons per minute. Rate of water flow from equipment

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WWID? >>>>>> LOL… a lot

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UTSB = Use The Search Bar

Had to. :yum:

But this will make it better…