Pressure washer spray tips are confusing or wrong for the job

Symptoms

• Spray seems too weak or too aggressive for the surface
• Streaking or uneven cleaning results
• Concerned the wrong tip may damage a surface
• Unsure which colored tip to use

Likely causes

• CommonUsing a narrow-angle tip on a delicate surfaceA 0-degree (red) or 15-degree (yellow) tip concentrates pressure enough to gouge wood, siding, or vehicle paint.
• CommonUsing too wide an angle for tough, caked-on grimeA 40-degree (white) tip is gentle but won't remove heavy buildup effectively.
• CommonHolding the wand too close to the surfaceDistance affects effective pressure at the surface as much as the tip angle does.
• PossibleUsing the soap tip for rinsing (or vice versa)The low-pressure black soap tip won't rinse effectively; a high-pressure tip won't draw detergent.

What to do

1. Identify your tip colors: red (0 degrees, very narrow) is for tough stains on concrete only; yellow (15 degrees) for stripping paint or stubborn grime; green (25 degrees) for general cleaning; white (40 degrees) for cars, siding, and delicate surfaces; black is the low-pressure soap tip.
2. Always start with the widest angle tip (white) and test on a small, inconspicuous area before moving to a narrower one.
3. Keep the wand at least 12–24 inches from the surface initially, moving closer only if needed and the surface tolerates it.
4. Use the black soap tip only for applying detergent, then switch to a rinse tip (green or white) to rinse it off.
5. Never use the red 0-degree tip on wood, siding, vehicles, or anything other than tough stains on bare concrete.
6. Move the wand in smooth, overlapping passes rather than holding it in one spot, which reduces the chance of streaking or gouging.
7. If a surface looks damaged after washing, stop using that tip on that surface and step down to a wider angle.

Tools and parts

• Pressure washer nozzle tip set

When to call a pro

Not a repair issue; if you're unsure about washing a specific delicate surface (like old wood siding or a roof), consider hiring a professional pressure washing service instead.

Safety