Water Pressure Tank Sizing Calculator

Choosing the correct size well tank to fit your individual household needs is a critical process.

Water pressure tank sizing calculator.

The proper calculation for a pressure tank size is primarily based on the water pump s gpm gallon per minute capacity which is provided by the manufacturers based on size. Installing a well tank that is too small will increase pump cycles which can reduce pump life resulting in a costly repair or replacement. You will want to choose a tank with the lowest volume capacity that is greater than or equal to the total required volume. A properly sized pressure tank ensures your household water needs are met and your pump is protected against short cycling.

1 determine the output. See example below with this information in hand you can refer to the flexcon sizing charts below to select the proper tank for your application. This should not be confused with tank volume for example a pre charged tank with a tank volume of 20 gallons has only five to seven gallons drawdown capacity depending on the cut in cut out on. If you re installing a new water pressure tank or replacing an old one you can determine the size for optimum water pressure and pump performance using online calculators.

The figure that is calculated on line 7 is the total tank volume required based on the given design criteria. Pressurized well tanks extend the lifespan of your well pump by preventing rapid on off cycling of the pump and maintaining water pressure throughout your home.