Water Pressure Tank Sizing Chart

There are no disadvantages to having a larger well tank.

Water pressure tank sizing chart.

Once the pressure in the tank meets the 60 psi threshold pump cut out pressure the pressure switch will signal the water pump to stop pumping ceasing the influx of water into the tank. 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. Join john woodard our master water specialist. Notes to the wel rite water tank sizing chart.

Larger tank sizes will reduce pump cycles extending pump life and saving electricity. By reviewing the chart below you can get a general capacity of water you will get out of a tank based on your cut in and cut out pressures. The normal pressure spread for cut in and cut out is 20 30 p s i. A properly sized pressure tank ensures your household water needs are met and your pump is protected against short cycling.

When choosing an internal bladder type water pressure tank take note of the operating pressure range of your well pump equipment. 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. With the water pump off the pressure in the tank will remain at 60psi until more water in the house is used draining the tank once again. The figure that is calculated on line 7 is the total tank volume required based on the given design criteria.

You will want to choose a tank with the lowest volume capacity that is greater than or equal to the total required volume. Data based on a well rite water pressure tank.