Flushing valve

[SMIAH]

We would like to install a “flushing valve” on a waterline (4’’) so we can use water during winter months (e.g. snow production).
We don’t want to use a fire hydrant. The conduit, between the waterline and the ground, has to be cleared after each usage so the water won’t freeze.

Anyone knows a product that could meet our need?

Thanks!

 

[SMIAH]

Came across :

Frost-Proof Automatic Draining Wall Hydrants with Backflow Preventer.

Would it be that? Looks simple.

 

[btrueblood]

There are freestanding versions of the self-draining hydrants also.