Grundfos SQFlex with 3000' to float switch [RE-wrenches]

[Allan Sindelar]

I haven't used the SQF yet, so this suggestion may be of little use: When
installing a Dankoff Solar Force piston pump, which is also a powerful
positive displacement pump, we always use a surge tank (a small captive-air
bladder pressure tank, such as a Well-X-Trol WX101) to absorb pump piston
pulsation. As well as a pressure relief valve, this might also serve as a
low cost way to absorb pressure pulse from the float valve shutoff. This
used to be an option; now it is included with each pump.
Allan at Positive Energy

----- Original Message ----- 
From: "Brad Bassett" <bsbassett at earthlink.net>

> Though the SQFlex progressive cavity pumps are not really achimedies
> screws, they are positive displacement pumps and can put out extremely
> high pressure (pipe bursting pressure from what I hear). I would always
> put a pressure relief valve, and the pressure switch, between the pump
> and any valves.
>
> Brad Bassett

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