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Newell Gurus
JetpaQ water pump - Printable Version

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+--- Thread: JetpaQ water pump (/showthread.php?tid=2576)



JetpaQ water pump - rheavn - 10-19-2015

Many of the 90s coaches have the old JetpaQ 110V water pumps(see picture).  This water pump has a pressure diaphragm similar to a pressure tank in a well system.  The pressure diaphragm is located within the stainless steel end.  The manual calls for checking the pressure within the pressure diaphragm every 6 months.

Since I have never checked mine I thought I would.  The pump is charged at the factory to 30psi.  This would give the pump a discharge rate of 43 psi.  A drop in pressure in the pressure diaphragm will drop your discharge pressure--for example dropping to 26psi, the discharge rate drops to 36 psi.  There is a normal tire type schrader valve on the stainless end of the pump.  Prior to checking the pressure shut off the pump and release all pressure by opening a faucet. I checked mine with a tire gauge and it was only 21.5 psi.  I increased it to 30 psi.  Remember this is a small pressure diaphragm so you will just need to put in a small amount of air.