PSI + GPM
Tip orifice chart
Turn the numbers on your pump into a tip size. Too small spikes pressure. Too big and the wash goes mushy.
Guides
Charts, fittings, and the bleach rule.
We write the matching logic first — orifice, deck size, chemistry path — then point at tagged Amazon links.
Orifice + PSI
Pressure washer GPM chart
Turn a tip orifice and your PSI into approximate GPM, then see which hole actually fits the pump.
Angle + job
Pressure washer tip size chart
Which fan — 0°, 15°, 25°, 40°, or soap — for concrete, siding, cars, and decks at homeowner PSI bands.
Spinning deck
Surface cleaner matrix
Match deck diameter to flow. A 20-inch cleaner on a 1.4 GPM electric will just sit there and streak.
Chemicals
Foam cannons and soap
How to foam without wrecking seals — and why bleach never, ever goes through the pump.
Fittings
Quick-connect wands
M22 vs 1/4-inch QC, electric vs gas, and the adapter that actually fits the gun in your garage.
How-to
How to pressure wash a driveway
Size the orifice, degrease oil spots, run a 15″ surface cleaner, and finish the edges with 25° and 40° — without etching the pad.
How-to
How to pressure wash a patio
Size the orifice, wash concrete and pavers with 25° green and standoff, and rinse with 40° — without blowing sand out of the joints.
How-to
How to remove oil stains from a driveway
Chemistry-first oil stain removal: absorb, degreaser dwell, agitate, then rinse. Pressure alone spreads oil.
How-to
How to pressure wash a house
40° white for soap and rinse, 25° green only with standoff, pump-safe siding soap downstream — never 0° red or bleach through the pump.
How-to
How to pressure wash a wood deck
Soft-wash a wood deck: 40° white, standoff, downstream soap, and no spinning surface cleaner — never 0° red or bleach through the pump.
How-to
How to pressure wash a fence
Soft-wash a wood fence: 40° white, standoff, downstream soap, and no 0° or spinning cleaner — never bleach through the pump. Vinyl gentler; metal still watch the coating.
How-to
How to pressure wash a car
Paint-safe car wash: 40° white and 25° green only, with standoff, foam pre-soak, and a two-bucket mitt. Never 0° or 15° on clearcoat, and not in the hot sun.
How-to
How to winterize a pressure washer
Drain the pump, hoses, gun, and wand, then pump saver. Gas engines get fuel stabilizer. Electric units store above freezing.