Snow Joe Support Knowledge Base Snow Joe Knowledge Base

Your Sun Joe Pressure Joe SPX2000 has a downstream chemical injector, installed on the outlet (discharge) side of the pump, that applies detergent on the low pressure setting with the nozzle tip wide open. The advantage of the downstream injector is that the chemicals cannot cause damage to the pump system. In upstream injectors, the chemicals run through the pump, causing the pump seals to wear out.