Guides

Charts, fittings, and the bleach rule.

We write the matching logic first — orifice, deck size, chemistry path — then point at Amazon placeholders.

PSI + GPM

Turn the numbers on your pump into a tip size. Too small spikes pressure. Too big and the wash goes mushy.

Spinning deck

Match deck diameter to flow. A 20-inch cleaner on a 1.4 GPM electric will just sit there and streak.

Chemicals

How to foam without wrecking seals — and why bleach never, ever goes through the pump.

Fittings

M22 vs 1/4-inch QC, electric vs gas, and the adapter that actually fits the gun in your garage.