You might consider installing a shut-off on the pressure side so you can shut it off in summer. I have seen many with a gate-valve installed at the thermostat housing. A quarter-turn valve would work just fine too if there's room to turn the handle.

Last edited by 1Ton_tommy; 08/31/2023 12:42 PM. Reason: correct typos
1951 3800 1-ton
"Earning its keep from the get-go"
In the DITY Gallery
1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.