As mentioned above, pressure tanks are commonly used with jet pumps. A pressure tank is
a canister that tees into the water line, and helps the watering system to gently cycle on and off when water is
needed. A common misconception is that pressure tanks store water, however this is not true. Pressure tanks are
actually filled halfway with air to help apply and maintain constant pressure when water is not running. Water does
not actually flow through a pressure tank, as it just sits on the mainline. The pressure tank works in correlation
with the pressure switch to maintain a constant pressure when no water is flowing so the jet pump ‘knows’ not to
turn on
A repair or replacement of the pressure tank or pressure switch is often needed when
your system is short cycling. In simple terms, short cycling means that there is an insufficient air charge in the
pressure tank. Your irrigation system ‘calls’ for water, but since there is a loss of air charge, the pump will turn
on and off rapidly. It is important to Contact us or schedule a service
call immediately when this happens because continuous short cycling can permanently damage pump
controls, the irrigation pump, the pressure tank, or the pressure switch. The main causes of short cycling are a
defective pressure switch, faulty pressure tank, or improper water flow rate