I live in MN and every fall when we’re done in our yard I’ll turn off the water in the house for the lines that go to the outdoor faucets attached to the house.

Then I’ll open those faucets outside to let the water drain.

Inside the house on the water line itself is a bleeder valve I’ll open to help the line drain.

Once drained I close the drain valve and the bleeder valve and put an insulating cover on the spigot.