Question about Pentair Flotec Fp7110t-08 Water Tank Pre-charged

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How do I increase the pressure on my Flotec FP711OT-08. It is low 40s psi, can I move it up to 50 psi or high 50 psi? Water pressure throughout the house is low.

It is low 40s psi, can I move it up to 50 psi or high 50 psi? Water pressure throughout the house is low. Recommended maximum is 60 psi.

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There may be a pressure setting on your outfit but My feeling is -- your problem will be low pressure on your water line. Most pressure settings is to keep from having too much pressure on what your running. For instance our city water pressure is 70 lbs but in order to keep my furnace boiler system at 16 lbs I have to install a pressure reducer.

Posted on Dec 11, 2014


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1 Answer

Pressure switch

Remove cap from pressure switch (small nut on top). You will see 3 threaded studs with springs held down by nuts at the end opposite from wired connections. Avoid wired connections with tools and fingers! The center sprung nut adjusts the ON AND OFF pressure settings. Clockwise (tightening down on spring) increases the pressure setting. One of the outside springs controls nothing - note that it has no connection to the switch moving parts. The other one adjusts the OFF setting. So adjust the center one until the ON pressure is 30 psi and then adjust the OFF setting until the pump cuts out at 50 psi. If you have an expansion tank, set this to 2 psi below the OFF setting. (If you have manual for the pump, check the pressure settings in the tables given for your pump.)
If this isn't what you need, please post more info!

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