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1. Find the main shut off
valve and make sure it works.
Look for a pipe going through a foundation wall.
Do this even if you know you have zone valves. You will be
surprised how easily an old, unused valve breaks.
If this bubba is leaking or will not shut off, call the city water
department NOW!
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Water main with meter
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2. Locate zone valves and make
sure they work.
Find both the hot and cold water valves.
Have someone go to the area you are going to work on and turn on the
water.
Turn off the zone valves until your helper tells you the water is off.
(Radio Shack has inexpensive short range radios)
TAG each valve as 'hot" or "cold" and the area it shuts
off.
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So...which valve is hot or cold?
Hah! Left valve is for outside faucet!!
Put a tag on each and every valve.
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