Well pump: Swing or Spring check valve?

Old 05-30-20, 09:54 AM
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Well pump: Swing or Spring check valve?

I am moving my well pump equipment into a new building that I am finishing. It currently has a very old 1-1/4" spring check valve downstream of the pump. Since I am redoing everything I plan to install a new check valve, I just took delivery of a 1-1/4" swing check valve. After looking at it I am concerned that it will allow water to backflow down into the 170' deep well. It is simply a brass flapper that is pressed against a brass seat with back pressure when the pump is not operating. There is no gasket or other seal.

I am curious what others use in their well setups, and if you've had issues with swing valve allowing water to flow backwards through them? Thanks.

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Old 05-30-20, 10:10 AM
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Welcome to the forums.

The brass on brass is a very effective seal. It allows for the most flow of water. The spring type are somewhat restrictive. The most important thing with a check valve is that it gets installed oriented correctly. Some are horizontal only... some are vertical only.... some don't care.

I don't have a well so I don't use a check valve.
Many of our members do have wells and will stop by to comment throughout the day.


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