Pressure Washer Nozzle Chart
The five colour-coded nozzles, their degrees and safe surfaces.
- Nozzles
- 5
- Spray angles
- 0-40 deg
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Equipment & Chemicals
4 tools · 4 guides · 3 comparisons · 11 pages
PSI, GPM, nozzle degree, injector ratio and mix percentage — the five numbers that decide whether a machine can do the job.
Equipment & Chemicals
Calculators
Downstream Injector Calculator
Work out the mix that actually leaves the gun at the wall.
- Draw ratio
- 1:8-1:20
- Wall mix
- 0.5-3.0%
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Surface Cleaner Size Calculator
Match disc diameter to your GPM so the bar keeps spinning.
- Disc sizes
- 15-30 in
- GPM needed
- 3-8
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Cleaning Units Calculator
PSI x GPM, the one number that compares two machines.
- Typical CU
- 6k-32k
- Inputs
- 2
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Guides
Pressure Washer PSI: How Much You Actually NeedWhy GPM moves more dirt than PSI, and where PSI still matters.8 minPressure Washing Chemicals ExplainedHypochlorite, surfactant, degreaser, acid — what each one is for.9 minSodium Hypochlorite for Pressure WashingStrength, decay, dilution and the safety rules that are not optional.9 minSurface Cleaners: Sizing, Speed and StreaksDisc size, bar RPM, overlap and the striping that gives you away.8 min