will this work for anti-freeze?

Got a big garden project I'm working on.

Need to install a 1" pipe loop around a large area (above ground piping).

Water will go in on one side.

There will be water usage on the other side, some of the time

Back toward the well (downhill side), I am thinking of having a swimming
pool pump, working through a 1" regulator, with thermostat switches which
come on when temp drop down to 35 degrees.

I'd like to think this will keep it from freezing. Theory being that it
will keep pushing water through the system.

Will this work out OK?