GROCO 3.2-Gallon Drawdown Pressure Storage Tank

The GROCO 3.2-Gallon Drawdown Pressure Storage Tank is designed for pressurized marine water systems that use a pressure-switch-controlled pump. Its internal bladder separates the pneumatic charge from system water, storing usable pressure between pump cycles and helping prevent the tank from becoming waterlogged.

The stored pressure smooths delivery at faucets and showers, reduces rapid pump cycling, and can improve hot-and-cold water mixing at fixtures. The tank can be mounted in multiple orientations in the cold-water plumbing after the pump, providing flexibility in crowded onboard spaces.

Confirm tank capacity, plumbing connection, system pressure, pump cut-in pressure, precharge requirement, mounting location, and service access before installation. Set the pneumatic charge according to the pump and tank instructions, support the tank securely, and test the completed system for leaks and proper cycling. Look through the rest of our bilge and water pumps.

• Stored water pressure allows longer intervals between pump starts.
• The bladder tank helps reduce abrupt pressure changes as water is used.
• More stable pressure can make shower temperature easier to control.
• The tank supports flexible placement in compatible cold-water plumbing.