Tech Talk – Fuel Pump Gauges
You should always have a pressure gauge installed on a fuel pump. SunTec pumps are the only ones with a gauge port. See picture showing you where this optional gauge goes. When burner problems arise the first thing you need to know is if the pump is producing the right pressure.
Typically – the recommended fuel pump pressure for a pressure washer burner is 140-150 psi. Anything less and chances are all of the fuel will not burn resulting in a ‘smoking’ burner and premature coil cleaning.