
A high draw injector pulls chemical faster than a standard downstream injector, which matters when you are running thicker acid or a heavier mix and a normal injector barely sips. This is the General Pump adjustable version: turn the knob to dial the draw rate up or down instead of swapping injectors every time the job changes.
Match It to Your Flow
Injectors are sized by the flow of the machine, not by what you are spraying. Put a 2-3 GPM injector on an 8 GPM machine and you will choke the line and lose pressure; put an 8 GPM injector on a small machine and it will not draw at all.
- 2-3 GPM for smaller contractor and homeowner machines
- 3-5 GPM for the typical 4 GPM contractor rig
- 5-8 GPM for high flow and production machines
How It Runs
This is a downstream injector, so it sits after the pump and only draws when the pressure drops. That means it pulls chemical with a black soap nozzle on and stops the moment you switch to a high pressure tip. Nothing corrosive ever goes through the pump, which is the whole point when you are running acid.
Rinse the injector with clean water at the end of every acid job. Acid left sitting in the check valve is what kills them.
See also all chemical injectors and chemical strainers. Call (301) 519-9274 to size one.
