How Does It Operate?
Pressure Washer Chemical Injector Kit consists of the soak suction filter, 6 FT of clear tube, adjustable knob, injector and 3/8” quick connect couplers. Operation: quick connect the pressure washer chemical injector on the outside (discharge side) of the pump. Place the soak suction filter into a container of your favorite chemical and attach the black low pressure soap nozzle to the tip of the wand. Start you pressure washer as normal and the pressure washer chemical injector will do the rest. When you are done applying cleaning solution onto the surface, turn off the chemical adjustable knob and replace the soap nozzle with a 0º (red color) or 15º (yellow color) nozzle to remove loosened dirt.
Types of Injectors
There are two types of injectors: upstream and downstream injector. An upstream injector is installed on the inlet side of the pressure washer pump system. A downstream injector is installed on the outlet (discharge) side of the pump. The more commonly used one is the downstream injector.
The advantage of the upstream injection is that the user will be able to apply the chemical with high pressure. The disadvantage is that by having the chemical run through the pump, the pump seals will wear out much quicker.
The advantage of the downstream injector is that it is inexpensive and that the chemicals cannot damage the pump system; the disadvantage is that it can only be applied with low pressure output.
Most of injectors are very simple devices with no moving parts and will little that can go wrong. If your injector stops working, look for causes external to the injector before you replace it!