SEAFLO 0.75L Pressurised Water Accumulator Tank 125PSI Marine RV

Smoother water flow and reduced pump cycling

A compact 0.75L pressurised accumulator for diaphragm-pump water systems. Its internal air cushion stores a small volume of pressurised water, helping reduce rapid pump starts, smooth pulsation, lower noise and stabilise hot-water temperature.

Technical specifications

Applications and compatibility

• For pressurised freshwater systems on boats, caravans, RVs and remote cabins using a compatible diaphragm pump.
• The 125PSI tank rating must not be treated as the recommended system pressure; all connected components must share a safe operating range.
• Pre-charge should normally be set relative to the pump cut-in pressure according to the manufacturer instructions.
• It is a water-system accumulator, not an expansion vessel for an unregulated hot-water heating circuit unless the whole installation is designed for that purpose.

Installation and package contents

• Install on the pressurised side of the pump in a dry, accessible position and secure the mounting feet.
• Depressurise and drain the water side before measuring pre-charge at the tyre valve.
• Use compatible snap-in fittings and pressure-rated hose; check for leaks after commissioning.
• Package contains one 0.75L accumulator tank. Confirm the exact port adapter supplied before ordering.

Frequently asked questions

What does an accumulator tank improve?

It smooths flow, reduces pump cycling and can lower noise and electrical consumption.

Is the pre-charge permanently fixed at 10PSI?

No. It can be adjusted through the tyre valve to suit the pump system, following the manufacturer guidance.

Can pre-charge be checked while the system is pressurised?

No. Switch off the pump, open a tap and fully relieve water pressure first.

Does the tank contain a water pump?

No. It is an accumulator used with a separate pressure pump.