What downstream injector means
A downstream injector draws chemical into the water line after the pressure washer pump, so the pump never touches the chemical.
Also called DS injector, chemical injector.
Where it matters on a pressure washing job
Injectors dilute heavily, which limits mix strength. Know your injector's draw ratio to hit the right mix at the surface.
What it costs
The pressure washing cost guide has the typical job at $520 and the usual range at $360 to $670. The guide shows its sources and what moves the price. The downstream injector calculator prices a job line by line.
Work it out
- Free calculator: Downstream injector calculator
- Cost guide: Pressure washing cost
- Tools, templates and guides: Free pressure washing resources