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Learn about Plumbing - Paul McElrath - About Plumbing Utility sink ~ Deep fixed basin, supplied with hot and cold water, which is used for rinsing of mops, disposal of cleaning water Parallel System ~ Two or more identical size heaters piped with water connections, that is, cold water travels equal distance into the inlets of the heaters from a "T" connection and hot water travels equal distance from the outlet of the heaters to a "T" connection. Barrier-free sinks have an indentation on the front, allowing closer, easy access; Barrier-free showers implement a low receptor lip (minimal or no bottom track) and openings that are wheelchair-accessible for a smooth, easy...See more » Learn about Plumbing - Paul McElrath - About Plumbing Utility sink ~ Deep fixed basin, supplied with hot and cold water, which is used for rinsing of mops, disposal of cleaning water Parallel System ~ Two or more identical size heaters piped with water connections, that is, cold water travels equal distance into the inlets of the heaters from a "T" connection and hot water travels equal distance from the outlet of the heaters to a "T" connection. Barrier-free sinks have an indentation on the front, allowing closer, easy access; Barrier-free showers implement a low receptor lip (minimal or no bottom track) and openings that are wheelchair-accessible for a smooth, easy transition in and out of the shower. Porcelain Enamel ~ Vitreous enamel. Often refers to pressed steel products with a porcelain glaze. Paul McElrath - Plumbing Parts Metal fatigue ~ A breakage of the metal caused by the bending and flexing or the expansion and contraction of a metal part beyond its endurance limit. Wet Vent ~ Drain or waste pipe that also acts for one or more fixtures on the same line. Siphon Break ~ The point in a toilet flush cycle when air is re-introduced into the trapway, breaking the siphonic action. This is characterized by the deep gurgling sound heard at the end of a flush. Thermostatic Valve ~ Pressure-balancing shower mixing valve with automatic temperature control. When temperature or pressure fluctuations occur at the water inlets, a thermal actuator adjusts the hot and cold ratio to maintain the original temperature setting. Paul McElrath - About Pipes : N P S H A ~ Net positive suction head available to prevent cavitation of the pump. It is defined as: Atmospheric pressure + gage pressure + static pressure - vapor pressure - friction loss in the suction piping. More related websites: Paul McElrath - Heating Tips Paul McElrath - ABS Pipe Paul McElrath - Copper Piping Paul McElrath - About Plumbing Paul McElrath - Buy Plumbing Paul McElrath - Steam Piping Paul McElrath - Install Black Iron Pipe Paul McElrath - ElbowSee less »