The SHURflo Accumulator tank is a bag-type pressure storage vessel and/or a pulsation dampening device.
The accumulator is precharged to 20 psi [1.4 bar] for shipping. Do not exceed this pressure for long-term
storage, shipping or system non-use.
An accumulator placed in the pressurized side of a potable water or reverse osmosis system (with a
demand pump), can minimize pump cycling. The accumulator contributes to longer pump life, less noise,
less amperage draw, and reduced water pulsation. The most efficient use of the accumulator occurs with
the precharge pressure set at the SAME pressure as the pumps' pressure switch "turn ON" setting.
Typically, a 40 psi [2.7 bar] pump will "turn ON" at 20 psi [1.4 bar]. Therefore, the precharge should also be
20 psi [1.4 bar]. The precharge must be set in a "static" condition (pump off and at least one water fixture
opened to atmosphere).