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PLUMBING TOPICS OIL TANKS SEPTIC SYSTEMS WATER PRESSURE REGULATOR ADJUST WATER PRESSURE REPAIR GUIDE & COSTS WATER PRESSURE LOSS DIAGNOSIS GUIDE WATER PRESSURE & FLOW MEASUREMENT WATER PUMP PRESSURE CONTROL ADJUSTMENT WATER PUMP PRESSURE CONTROL REPAIR WATER PRESSURE REGULATOR ADJUST WATER PUMPS & WELL TANKS WATER PUMP CONTROLS & SWITCHES IDENTIFY WELL PUMP TANK COMPONENTS MAIN WATER SHUTOFF VALVE WATER PUMP ELECTRICAL SWITCHES WATER PUMP PRESSURE CONTROL WATER PUMP PRESSURE CONTROL ADJUSTMENT WATER PUMP PRESSURE CONTROL REPAIR WATER PUMP PRESSURE CONTROL REPLACE WATER PRESSURE REGULATOR ADJUST WATER PUMP RELAY SWITCH WATER TANK AIR VOLUME CONTROLS TANK AIR INLET VALVE TANK AIR VALVE REPAIRS WATER TANK PRESSURE GAUGE WATER TANK DRAIN VALVE WATER TANK RELIEF VALVE CHECK VALVES WATER FILTERS WATER FILTERS WATER PUMP TYPES & LIFE EXPECTANCY WATER PUMP & TANK SAFETY WATER SUPPLY & DRAIN PIPING WATER TANK TYPES: WATER, OIL, EXPANSION, ALL WATER TANK LIFE EXPECTANCY WATER TANK REPAIRS WATER TANK AIR, HOW TO ADD WATER TANK BLADDERS & CAPTIVE AIR WATER TANK BLADDER PRESSURE ADJUSTMENT WATER TANK PRESSURE CALCULATIONS WATER TANK SIZE & VOLUME WATER TANKS HOW THEY WORK WATER TESTING WATER TREATMENT EQUIPMENT CHOICES WELLS CISTERNS & SPRINGS WELL, PUMP, TANK LIFE EXPECTANCY More Information InspectAPedia Blog - News Updates Air Conditioning & Heat Pumps Bookstore Electrical Environment Exteriors Heating Home Inspection Insulate Ventilate Interiors Mold Inspect/Test Plumbing Water Septic Roofing Structure Accuracy & Bias Pledge Contact Us |
This article describes The Main Water Shutoff Valve or Control, How to Locate & Shut Off Water in a Building. Readers of this document should also see Water pump and pressure tank repair diagnosis & cost an specific case which offers an example of diagnosis of loss of water pressure, loss of water, and analyzes the actual repair cost. © 2009 Daniel Friedman, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use links at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website. MAIN WATER SHUTOFF VALVE - How to Find the Valve and How to Turn Off Water in a BuildingWhich way to turn the water shutoff valve - which way is "off"?Lever type water valves such as the one in this photo are "on" or "open" permitting water to flow when the valve handle is parallel or "in line with" the water piping, and the valve is "off" or "closed" or "shut" when the valve is at right angles to the piping. So in this photo you can see that the water valve is in the "open" position. Round handled shutoff valves are in their "open" position when the valve has been turned fully counter clockwise and these valves are "shut" when the valve has been turned fully in a clockwise direction. Multiple Water Shutoff Valves May Be PresentHow to Fix Leaky Water Shutoff ValvesLeaks at main shutoff valves occur, particularly at round shutoff valves around the valve stem (the rod just under the valve handle). Sometimes you can repair such a leak by carefully and gently tightening the nut that is found just under the round valve handle and through which the valve stem protrudes. This will squeeze valve stem packing more tightly around the stem and may stop a leak there. But be careful not to over do it - if you crack the packing nut or break the valve assembly you'll have a much bigger leak. How to turn off the water if you cannot find the main shutoff valve: if the main shutoff valve can't be located, or if it is broken (or you just broke it), or if it is jammed and does not turn, you can still stop water from running into the building. Find and turn off the electrical power to the water pump. The water pump main electrical switch is usually located near the water pump or water pressure tank (if the pump is a submersible unit down in the well). The water pump electrical switch is described in more detail below. If you turn off electrical power to the water pump, some water may continue to flow into the building until all of the pressure in the water pressure tank has been exhausted (perhaps one to four minutes) but that'll be it. If your water supply is from a municipal supply and not a private well and water tank, and if your water shutoff needs repair or replacement, you'll need to find (or get help finding) a main water shutoff that may be located (buried) between the building and the water main in the street. We advise against taking apart or messing with a stiff or leaky main water shutoff on municipal water supply systems unless you can shut off the water outside of the building first. ... Technical Reviewers & References
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WATER PUMP, TANK & WELL REPAIRS
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More Information on Building Diagnostic Inspections and RepairsPlumbing Diagnosis & Repair: Water supply, drainage, septic systems, water testing, water contamination, defective plumbing materials & products.
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11/03/2009 - 04/18/1998 - InspectAPedia.com/water/WPControls3.htm - © 2009 - 1988 Copyright Daniel Friedman All Rights Reserved - InspectAPedia® is a Registered U.S. Trademark