Is there a reason the check valve can't be located in the well house rather than at bottom of well?

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Jimpad

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Seems to me the only problem would be if there's a leak in the downpipe which would allow water to drain from the leak down to the static level.
 

LLigetfa

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If the static level is lower than about 30 feet, the weight of the water column can draw a vacuum. On pump start, the water column will be super accelerated and slam into the check valve causing water hammer. The large inrush can also cause uplift on the volutes and grind them down.

Why do you even need to install a check valve? Do you not have one built into the pump?
 

Jimpad

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Gotcha, thanks.

It's just something I've wondered about in case it ever fails I was thinking I could just put one in at the surface.
 
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