Pressure Washer Nozzle Chart: Colors and Angles
The five colour-coded nozzles, their degrees and safe surfaces.
- Nozzles
- 5
- Spray angles
- 0-65 deg
Open
Equipment & Chemicals
6 tools / 6 guides / 5 comparisons / 17 pages
PSI, GPM, nozzle degree, injector ratio and mix percentage — the five numbers that decide whether a machine can do the job.
Equipment & Chemicals
Tools
Downstream Injector Calculator
Work out the mix that actually leaves the gun at the wall.
- Draw ratio
- 1:8-1:20
- Wall mix
- 0.6-1.4%
Open
Surface Cleaner Size Calculator
Match disc diameter to your GPM so the bar keeps spinning.
- Disc sizes
- 15-30 in
- GPM needed
- 3-8
Open
Cleaning Units Calculator
PSI x GPM, the one number that compares two machines.
- Typical CU
- 2k-32k
- Inputs
- 2
Open
Pressure Washer Nozzle Size Calculator
Turn your PSI and GPM into the orifice size number to buy.
- Size number
- GPM @ 4000 PSI
- Sizes
- 2.0-10.0
Open
Buffer Tank Size Calculator
Size the tank from your GPM, a bucket test and the run time.
- Bucket test
- 5 gal
- Water weight
- 8.34 lb/gal
Open
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 minSoft Wash System Setup: Pump, Tank and HoseThe 12V rig: pump curve, materials, proportioners and sizing.8 minPressure Washing Trailer Setup: Layout and WeightWhere the tank, machine and reels ride, the water plumbing, tongue load and the rules.10 min
Comparisons
Gas vs Electric Pressure WasherWhere an electric machine is enough and where it stalls.6 minHot Water vs Cold Water Pressure WasherWhat heat buys on grease, and what it costs to own.7 min3000 PSI vs 4000 PSI Pressure WasherThe GPM that comes with the pressure is the real difference.6 min2000 PSI vs 3000 PSI Pressure WasherWhich jobs each class does, and why the flow matters more than the PSI.7 minX-Jet vs Downstream InjectorWhere the chemical enters, how strong it lands, and how high it reaches.8 min