Always wash and lubricate your SG20 sprayer after using it. If pumping becomes harder than usual, check there’s no debris in the trigger valve, the nozzle ot the hose. It also helps to lubricate (oil) the piston pump.
Once again..Excellent! You know, the Owner’s Manual mentions to add the oil to the “Piston?” But it doesn’t say anything about those two holes you mention here. This is why I love your videos..you are a “Step-by-Step” instructor. Most Excellent....
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