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OIL TANKS
SEPTIC SYSTEMS
WATER PRESSURE DIAGNOSIS, REPAIR & COSTS
WATER PRESSURE LOSS DIAGNOSIS
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
  TANK AIR VOLUME CONTROLS
  TANK AIR INLET VALVE
  WATER TANK PRESSURE GAUGE
  WATER TANK DRAIN VALVE
  WATER TANK RELIEF VALVE
  CHECK VALVES
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 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
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  How Much Water is In the Well?
  How to Test Well Water Quantity
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  Hand Dug Wells
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  WATER PRESSURE LOSS
  WATER TANK TYPES
  WELL CLEARANCES
   US-HUD/FHA WELL CLEARANCES
   US-EPA WELL CLEARANCES
  WELL LIFE EXPECTANCY
  WELL PIPING CHECK VALVES
  WELL PIPING FOOT VALVES
  WELL PUMP TYPES & LIFE EXPECTANCY
  WELL PUMP PRIMING PROCEDURE
WELL CHLORINATION SHOCKING PROCEDURE

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This article describes Water Tank Air Valves or Schrader Valves for Adding Water to the Pressure Tank such as the water tank air valve. 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.

WATER TANK AIR INLET VALVE - SCHRADER VALVES

Captive air water tanks that use an internal bladder to keep water and air separate, such as the Well-X-Trol (TM) water pressure tank, will display an air valve, usually on top of the water tank, and often red in color such as shown in this photograph. Older steel water tanks and even some modern bladder type tanks also may include an air input valve or "schrader valve" to permit air to be pumped into the tank, but it may be located in various locations. In these installations the air valve may be located anywhere on or near the water tank such that air pumped into the valve will flow into the water tank itself.

The air valve may be found on the tank top, the tank side, on piping near the bottom of the tank such as this black-capped schrader valve just above the relief valve in this photo, or perhaps elsewhere. But logically you'd expect to see such a valve (if it's present at all) in a location where air inserted into the valve (say from a tire pump or from a can of compressed air) will flow into the water tank and not just out into the building water supply piping or water pump. See WATER TANK AIR, HOW TO ADD for step by step details of when, why, and how to add air to a water tank.

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PLUMBING TOPICS
OIL TANKS
SEPTIC SYSTEMS
WATER PRESSURE DIAGNOSIS, REPAIR & COSTS
WATER PRESSURE LOSS DIAGNOSIS
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
  TANK AIR VOLUME CONTROLS
  TANK AIR INLET VALVE
  WATER TANK PRESSURE GAUGE
  WATER TANK DRAIN VALVE
  WATER TANK RELIEF VALVE
  CHECK VALVES
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 BLADDER PRESSURE ADJUSTMENT
WATER TANK PRESSURE CALCULATIONS
WATER TANK SIZE & VOLUME
WATER TANKS HOW THEY WORK
WATER TESTING
WELLS CISTERNS & SPRINGS

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