Q. "How are the TQ pumps activated?"
A. The TQ pumps have a built-in pressure switch and internal flow switch. Either one of these will activate the pump depending on water consumption. The pump will start when the pressure is BELOW the pressure switch activation point, or the water flow rate is greater than 0.7 GPM. The preset pressure switch activation point for each model is provided in the pump specifications chart listed under "start pressure setting (PSI)." The incoming water pressure must be lower than the preset activation point; otherwise the pump will not start.
Q. "One of the features says the TQ has a self-priming function. Does this mean I never need to worry about priming this pump?"
A. When first installed the pump must be primed before operation. The TQ pumps have a built-in check valve, that will allow the pump to then pump water from depths of 25 feet or less without the worry of priming the pump each time. However, the pump must always be checked for prime if not used for a prolonged period of time. It is imperative to fill the pump with water before operation as dry running causes irreparable damage to the mechanical seal.
Q. "Can the 'start pressure setting' be adjusted?"
A. No, these pumps are supplied with a factory preset pressure switch and are not designed to be field adjusted.
Q. "What is the purpose of the built-in pressure tank?"
A. It is designed to minimize motor startup due to small flow demand or a minor leak in your water system. The pressure tank comes from the factory pressurized at the "start pressure setting".
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