Turn off water, water heater and icemaker and relieve some pressure
10 year old house - I always turn off the water at the main garage valve if leaving for extended period. Have a fear of returning home to find water running down the driveway...
Also relieve "a little" pressure.
And if turning off the water, I also always turn off the electric water heater in garage along with the refrigerator ice maker. NOT the refrigerator itself.
(new houses have gas water heaters I understand, so likely different)
Upon returning, VERY slowly turn valve in garage back on.
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