Understanding PSI and GPM Before You Start Pressure Washing
If you have ever shopped for a pressure washer or hired a crew for exterior cleaning, you have probably seen two abbreviations on every spec sheet: PSI and GPM. They look simple, but they decide how well a machine cleans, how fast the job goes, and whether your siding, deck, or driveway ends up spotless or damaged. For Richmond homeowners dealing with humid summers, pollen-heavy springs, and the algae and mildew that come with them, understanding these numbers is the first
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If you have ever shopped for a pressure washer or hired a crew for exterior cleaning, you have probably seen two abbreviations on every spec sheet: PSI and GPM. They look simple, but they decide how well a machine cleans, how fast the job goes, and whether your siding, deck, or driveway ends up spotless or damaged. For Richmond homeowners dealing with humid summers, pollen-heavy springs, and the algae and mildew that come with them, understanding these numbers is the first
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