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// CODE SNIPPET

603.5.6 Protection From Lawn Sprinklers and Irrigation Systems

Uniform Plumbing Code 2018 of Nevada > 6 Water Supply and Distribution > 603.0 Cross-Connection Control > 603.5 Specific Requirements > 603.5.6 Protection From Lawn Sprinklers and Irrigation Systems
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Potable water supplies to systems having no pumps or connections for pumping equipment, and no chemical injection or provisions for chemical injection, shall be protected from backflow by one of the following devices:
  1. Atmospheric vacuum breaker (AVB)
  2. Pressure vacuum breaker backflow prevention assembly (PVB)
  3. Spill-resistant pressure vacuum breaker (SVB)
  4. Reduced-pressure principle backflow prevention assembly (RP)

603.5.6.1 Systems With Pumps

Where sprinkler and irrigation systems have pumps, connections for pumping equipment, or auxiliary air tanks, or are otherwise capable of creating backpressure, the potable water supply shall be protected by the following type of device where the backflow device is located upstream from the source of backpressure:
  1. Reduced-pressure principle backflow prevention assembly (RP)

603.5.6.2 Systems With Backflow Devices

Where systems have a backflow device installed downstream from a potable water supply pump or a potable water supply pump connection, the device shall be one of the following:
  1. Atmospheric vacuum breaker (AVB)
  2. Pressure vacuum breaker backflow prevention assembly (PVB)
  3. Spill-resistant pressure vacuum breaker (SVB)
  4. Reduced-pressure principle backflow prevention assembly (RP)

603.5.6.3 Systems With Chemical Injectors

Where systems include a chemical injector or provisions for chemical injection, the potable water supply shall be protected by a reduced-pressure principle backflow prevention assembly (RP).

Related Code Sections


603.5.6 Water Supply and Distribution, Protection From Lawn Sprinklers and Irrigation Systems
) Where sprinkler and irrigation systems have pumps, connections ...
Uniform Plumbing Code 2018 of Nevada > 6 Water Supply and Distribution > 603.0 Cross-Connection Control > 603.5 Specific Requirements > 603.5.6 Protection From Lawn Sprinklers and Irrigation Systems
P2902.5.3 Water Supply and Distribution, Lawn Irrigation Systems
The potable water supply to lawn irrigation systems shall be protected against backflow by an atmospheric vacuum breaker, a pressure vacuum breaker ...
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The potable water supply to lawn irrigation systems shall be protected against backflow by an atmospheric vacuum breaker, a pressure vacuum-breaker ...
Residential Code 2018 of Nevada > 29 Water Supply and Distribution > P2902 Protection of Potable Water Supply > P2902.5 Protection of Potable Water Connections > P2902.5.3 Lawn Irrigation Systems
L 411.0 Sustainable Practices, Landscape Irrigation Systems
Potable water and supplies to landscape irrigation systems shall be protected from backflow in accordance with this code and the Authority ...
Uniform Plumbing Code 2018 of Nevada > L Sustainable Practices > L 411.0 Landscape Irrigation Systems
L 411.2 Sustainable Practices, Backflow Protection
Potable water and supplies to landscape irrigation systems shall be protected from backflow in accordance with this code and the Authority Having ...
Uniform Plumbing Code 2018 of Nevada > L Sustainable Practices > L 411.0 Landscape Irrigation Systems > L 411.2 Backflow Protection
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