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Full-open valves shall be installed in the following locations:
1. On the building water service pipe from the public water supply near the curb;
2. On the water distribution supply pipe at the entrance into the structure;
3. On the discharge side of every water meter;
4. On the base of every water riser pipe in occupancies other than multiple family residential occupancies that are two stories or less in height and in one- and two-family residential occupancies etc.;
5. On the top of every water down-feed pipe in occupancies other than one- and two-family residential occupancies;
6. On the entrance to every water supply pipe to a dwelling unit, except where supplying a single fixture equipped with individual stops;
7. On the water supply pipe to a gravity or pressurized water tank;
8. On the water supply pipe to every water heater.
Shutoff valves shall be installed in the following locations:
1. On the fixture supply to each plumbing fixture except one- and two-family or multiple family residential occupancies, or individual guestrooms that are provided with unit shutoff valves in hotels, motels, boarding houses and similar occupancies;
2. On the water supply pipe to each sillcock;
3. On the water supply pipe to each appliance or mechanical equipment; and
4. On water services 1 1/2 inches (40 mm) or larger requiring meters either in the building or in a meter vault, valves shall be installed on the inlet and outlet sides of the meter and as near as practicable thereto. Meters on 1-inch (25 mm) services have a valve on the inlet side only. Valves located in the meter vault shall not eliminate the need for the valve in the building. All such valves shall be accessible for operation at all times.
Water pressure booster systems shall be provided as required by Sections 18-29-606.5.1 through 18-29-606.5.10.
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