§ 13.12.020. Definitions
As used in this chapter:
"Air gap" means the unobstructed vertical distance, at least twice the diameter of the supply line and no less than one inch, through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank, plumbing fixture, or other device and the flood level rim of the receptacle.
"Approved device" means a device tested and accepted by a recognized testing laboratory approved by the Kansas Department of Health and Environment and the city building inspector.
"Backflow" means the flow of water or other substances into the distribution system of a potable supply of water from any source other than its intended source. Backsiphonage is one type of backflow.
"Backflow preventer" means a device or means to prevent backflow.
"Backsiphonage" means the flowing back of contaminated or polluted substances from a plumbing fixture or any vessel or source into the potable water supply system due to negative pressure in said system.
"Contaminant" means any substance that upon entering the potable water supply would render it a danger to the health or life of the consumer.
"Cross connection" means any physical connection or arrangement between two otherwise separate piping systems, one of which contains potable water and the other which contains water or any substance of unknown or questionable quality whereby there may be flow from one system to the other.
"Double check-valve assembly" means a device consisting of two internally loaded soft-seated check valves with positive shutoff valves on both upstream and downstream ends, and properly located test ports.
"Dual check valve" means a device consisting of two internally loaded soft-seated check valves. This device does not contain test ports.
"Free water surface" means a water surface at atmospheric pressure.
"Flood level rim" means the edge of the receptacle from which water overflows.
"Frostproof closet" means a hopper with no water in the bowl and with the trap and water supply control valve located below frost line.
"KDHE" means the Kansas Department of Health and Environment.
"Plumbing" means the practice, materials and fixtures used in the installation, maintenance, extension and alteration of all piping fixtures, appliances and appurtenances.
"Pollution" means the presence of any foreign substance (organic, inorganic or biological) in water which tends to degrade its quality so as to constitute a hazard or impair the usefulness or quality of the water to a degree which does not create an actual hazard to the public health but which does adversely affect the water.
"Reduced pressure zone backflow preventer" means an assembly of two independently acting soft-seated approved check valves together with a hydraulically operating, mechanically independent, differential pressure relief valve located between the check valves and at the same time below the first check valve. The unit shall contain properly located test cocks and resilient seated shutoff valves at each end of the assembly. To be approved these assemblies must be accessible for inspection and testing and be installed in an aboveground location where no part of the assembly will be submerged.
"Tester" means a trained technician certified in the testing and repair of backflow preventers.
"Vacuum" means an absolute pressure less than that exerted by the atmosphere.
"Vacuum breaker" means a device that permits entrance of air into the water supply distribution line to prevent backsiphonage.
Water, Potable. "Potable water" means water free from impurities in amounts sufficient to cause disease or harmful physiological effects. Its quality shall conform to Kansas Department of Health and environment requirements for public water supplies.
Water, Nonpotable. "Nonpotable water" means water that is not safe for human consumption or that is of questionable potability.
(Ord. 0801 § 1, 2008; Ord. 8909 § 2, 1989)