TL;DR
GPM flow rate is the water volume a pressure washer delivers each minute, and alongside PSI it determines real cleaning speed, since flow carries loosened dirt off the surface. Residential electric machines run about 1.2 to 2 GPM while professional gas rigs deliver 4 to 8 GPM, which is why a contractor can wash a driveway in a fraction of the homeowner-machine time.
What it means
GPM flow rate is the water volume a pressure washer delivers each minute, and alongside PSI it determines real cleaning speed, since flow carries loosened dirt off the surface. Residential electric machines run about 1.2 to 2 GPM while professional gas rigs deliver 4 to 8 GPM, which is why a contractor can wash a driveway in a fraction of the homeowner-machine time. Soft-wash house cleaning also depends on volume to rinse siding thoroughly, so bids quoting equipment specs reveal a lot about expected pace.
Where it sits in the glossary
GPM flow rate is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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