Hydrostatic loop - Wikipedia

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A hydrostatic loop, though not often used in plumbing practice, is an arrangement of pipes formed into a vertical loop to prevent backflow of water within the plumbing potable water system. Since a siphon has a maximum height that it can work (about 33 feet), a hydrostatic loop is built higher than 33 feet. There are several ways to prevent siphonage and an undesirable backflow of the water in a plumbing system.^[1]

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Vented loops ^[5]^[6]

References

^ Defni, Bolet. "Grease Trap Cleaning". Retrieved 21 September 2023.
^ Defni, Bolet. "Home Cleaning Services". Retrieved 19 September 2023.
^ Defni, Bolet. "Lifestyle Magazine". Retrieved 17 December 2023.
^ Defni, Bolet. "Lifestyle Magazine". Retrieved 17 December 2023.
^ "HVL and PVL Series Vented Loops" (PDF). .groco.net. Archived from the original (PDF) on 27 March 2014. Retrieved 26 March 2014.
^ marine toilets

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Fundamental concepts	Air gap (plumbing) Backflow Compatibility (chemical) Corrosion Drain (plumbing) Drinking water Fuel gas Friction loss Grade (slope) Greywater Heat trap Hydrostatic loop Leak Neutral axis Onsite sewage facility Pressure Sanitary sewer Sewer gas Sewage Sewerage Siphon Storm sewer Stormwater Surface tension Tap water Thermal expansion Thermal insulation Thermosiphon Trap (plumbing) Venturi effect Wastewater Water hammer Water supply network Water table Well
Technology	Brazing British Standard Pipe (BSP) Cast iron pipe Chemical drain cleaners Compression fitting Copper tubing Crimp (joining) Drain-waste-vent system Ductile iron pipe Flare fitting Garden Hose Thread (GHT) Gasket Hydronics Leak detection National pipe thread (NPT) Nominal Pipe Size (NPS) O-ring Oakum Pipe (fluid conveyance) Pipe dope Pipe support Plastic pipework Push-to-pull compression fittings Putty Sealant Sewage pumping Soldering Solvent welding Swaging Thread seal tape Threaded pipe Tube bending Water heat recycling
Components	Atmospheric vacuum breaker Automatic bleeding valve Automatic faucet Backflow prevention device Ball valve Bleed screw Booster pump Butterfly valve Check valve Chemigation valve Chopper pump Circulator pump Cistern Closet flange Concentric reducer Condensate pump Coupling (piping) Diaphragm valve Dielectric union Double check valve Eccentric reducer Expansion tank Faucet aerator Float switch Float valve Floor drain Flow limiter Flushing trough Flushometer Gate valve Globe valve Grease trap Grinder pump Hose coupling Manifold Needle valve Nipple (plumbing) Pinch valve Piping and plumbing fitting Plug (sanitation) Pressure regulator Pressure vacuum breaker Pressure-balanced valve Pump Radiator (heating) Reduced pressure zone device Reducer Relief valve Riser clamp Rooftop water tower Safety valve sewage pumping Street elbow Submersible pump Tap (valve) Thermostatic mixing valve Trench drain Vacuum breaker Vacuum ejector Valve Water tank Zone valve
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