Potable Water Pressure Tank Sizing

The 20 gallon pressure tank by water worker features a heavy duty butyl rubber diaphragm pre charged at 38 psi.

Potable water pressure tank sizing.

Installing a well tank that is too small will increase pump cycles which can reduce pump life resulting in a costly repair or replacement. Your flow rate is how many gallons per minute your pump produces. Owners of the water worker pressure tank report that it rivals the quality of the popular well x trol tank minus the price tag. To properly size your well pressure tank you need to know three things.

To accommodate the thermal expansion required for higher temperature and or higher pressure systems multiple tanks may be used. Both the tank volume and the acceptance volume must be greater than the calculated volumes as indicated. Most private home well systems operate between 30 pounds per square inch psi and 50 psi. It s important that the size of a tank is adequate for your.

The outer shell is made of rugged steel while the inside is lined with polypropylene to prevent corrosion. Minimum runtime multiplying the flow rate by the minimum runtime of the pump will give you the drawdown capacity. This means that the pump shuts off at the higher 50 psi and turns back on to fill the pressure tank at 30 psi. A 20 gpm pump needs a tank with 20 to 40 gallons of storage.

Water pressure tanks store water that s pumped from a well and dispense water under pressure when you use faucets and other fixtures. A pressure reducing valve should be installed on the supply when system pressure exceeds 80psi. Draw down capacity is the amount of water that is stored within the tank before the pressure is low enough to turn the pump back on. A 10 gpm pump needed a pressure tank that holds 10 or 20 gallons.

Make sure you have a tank size suited to your current plumbing system. Old pressure tank sizing method in the past pressure tanks were sized to store at least 1 or 2 gallons of water for every gallon per minute the pump can produce. Choosing the correct size well tank to fit your individual household needs is a critical process. How do i size a well pressure tank.