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• Water tank pressure gauges, how to find, repair, use water pressure gauges on private wells and water tanks
• What are the controls, switches, valves found on water tanks and water pumps, what do they do, how are they repaired?
• Well pump & water tank diagnosis & repair procedures

This article describes Water tank pressure gauges, how to find, repair, use water pressure gauges. 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. © 2008 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.

WATER TANK PRESSURE GAUGE

In this photo the water tank pressure gauge is visible mounted on a special brass fitting which is in turn connected to the bottom of the water pressure tank. The water tank pressure gauge is showing about 37 PSI. Note that water tank pressure gauges give a general idea of the water pressure measured at the water tank, and that the pressure shown on the gauge will normally drop down to the "pump cut-in pressure" at which point the water pump should start operating, and the gauge pressure will then rise up to the pump "cut out pressure" when the water pump stops. Water Pressure Indicator Gauge Accuracy Typical residential water system pressure gauges found at the water tank or water pump are only approximate and are not lab instrument grade, but the water pressure gauge is a very helpful diagnostic when you're diagnosing a loss of water pressure or pump operating problem as well as when you're adding air to a water tank. How to Repair or Replace the Water Pressure Indicator Gauge on a Water Tank or Pump If the water pressure gauge glass is broken or missing, if the gauge is visibly rusty or damaged, or if the gauge simply stops changing what it indicates despite the water system pressure changing (in other words the pressure shown on the gauge never changes) you should replace the gauge itself. The well pump is turned off, pressure is drained from the system (you do not have to let all of the water out of the tank, just be prepared for a little spillage). Then the new water pressure gauge is prepared for installation (make sure the gauge bottom threads match those of the old unit being replaced as diameters vary from 1/4" to 1/2"). We put our teflon tape or pipe dope on the new gauge threads before trying to remove the old gauge. Then the old gauge is removed by using a wrench on the brass fitting at the bottom of the gauge. DO NOT try to remove a water pressure gauge by twisting the gauge body itself - you'll just break it off and you may get cut or start a water leak. Remove the old water pressure indicator gauge, then calmly screw in the new one even though water is flowing out of the gauge mounting hole. Tighten the new gauge carefully in position with a wrench on the gauge bottom brass fitting. Do not over-tighten, but screw in the new gauge until there is no water leakage.

Water Tank Maintenance & Repair Chapter Index

Use links just below or at the left of each of the pages at our website to navigate this document or to view other topics at this website. Green links show where you are in our document or website.

PLUMBING TOPICS
OIL TANKS
SEPTIC SYSTEMS
WATER PRESSURE REPAIR GUIDE & COSTS
WATER PRESSURE LOSS DIAGNOSIS GUIDE
WATER PUMPS & TANKS & WELLS
WATER PUMP CONTROLS & SWITCHES
  IDENTIFY WELL PUMP TANK COMPONENTS
  MAIN WATER SHUTOFF VALVE
  PUMP ELECTRICAL SWITCHES
  PUMP PRESSURE CONTROL
    WATER PUMP PRESSURE CONTROL ADJUSTMENT
    WATER PUMP PRESSURE CONTROL REPAIR
    WATER PUMP PRESSURE CONTROL REPLACE
  PUMP RELAY SWITCH
  TANK AIR VOLUME CONTROLS
  TANK AIR INLET VALVE
  TANK AIR VALVE REPAIRS
  TANK PRESSURE GAUGE
  TANK DRAIN VALVE
  TANK RELIEF VALVE
  CHECK VALVES
  WATER FILTERS
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 PRESSURE CALCULATIONS
WATER TANK SIZE & VOLUME
WATER TANKS HOW THEY WORK
WATER TESTING
WELLS CISTERNS & SPRINGS
WELL, PUMP, TANK LIFE EXPECTANCY

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