Groco Accumulator Tanks
When it comes to reliable marine plumbing solutions, Groco has built a reputation for engineering products that stand up to the demanding saltwater environment. Their PST Series accumulator tanks represent decades of refinement in marine water system design, offering boat owners a proven solution for maintaining consistent water pressure while extending the life of onboard pumps.
PST Series Engineering and Design
Groco's PST accumulator tanks feature a pneumatic pressure charge matched to the pump cut-on pressure that prevents waterlogging by separating the air charge from system water pressure with a rubber bladder. This bladder-based design is central to what makes these accumulator tanks effective in marine applications. The PST series provides smooth water pressure delivery, even temperature mix in showers and reduced pump cycling, addressing three of the most common frustrations boat owners face with onboard freshwater systems.
Versatile Installation and Application
PST tanks may be mounted in any position, and anywhere in the cold water plumbing after the pump, and may be used for fresh or salt water. This installation flexibility is particularly valuable in marine environments where space is at a premium and plumbing runs must often follow unconventional paths. The tanks are available in multiple capacity options, allowing owners to select the right size based on their pump output and available installation space.
Extending Pump Life and System Performance
One of the most significant advantages of Groco's accumulator tank design is its impact on pump longevity. By maintaining water pressure in the lines even when the pump isn't running, the system prevents the pump from cycling on just to fill a glass of water. This reduces wear on motor brushes, pressure switches, and pump impellers—components that are expensive to replace and often difficult to access on a boat. The user-adjustable pressure charge allows precise matching to your specific pump's cut-on pressure, typically around 20 psi, optimizing system efficiency and water delivery.
Built for Marine Durability
Groco manufactures their accumulator tanks with corrosion-resistant materials designed specifically for the harsh marine environment. The company's commitment to quality extends beyond initial construction, with replaceable bladders and mounting hardware included with each tank. The PST Series represents the kind of practical, well-engineered solution that marine professionals and serious cruisers depend on for reliable onboard water systems.