Well pump: Swing or Spring check valve?

[Lu-Max]

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.

Video link

 

[twistedstang]

Swing is fine on horizontal piping. Springs are for risers.

 

[joablynn]

Swing will be fine. Your pump will most likely have a check valve in it too, the auxiliary check valve just takes some of the load off the built in one.

Sent from my SM-A102U using Tapatalk

 

[Lu-Max]

Thanks