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Seaflo 33-Series Water Pump and Accumulator Tank System: Steady 12V Water Pressure for Marine and RV Use

SEAFLO 33-Series Water Pump and Accumulator Tank System - 12V DC, 3.0 GPM, 45 PSI, 0.2 Gallon Tank
4.6
[High Flow Performance]  3.0 GPM at 45 PSI delivers consistent, powerful water flow.
[Energy-Efficient Design]  12V operation with 8.0A max draw conserves power and runs from batteries.
[Complete Installation Kit]  Includes pump, accumulator tank, fittings, and strainer for quick setup.
[Run-Dry & Self-Priming]  Self-priming and run-dry capable to reduce cycling and prevent damage.
[Drinking-Water Safe]  Constructed from materials safe for potable water applications.
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Home water equipment that promises steady pressure for small 12V systems, with components designed for potable use. Peace of mind for owners who need reliable taps and showers while off-grid or on the move. Is the Seaflo 33-Series Water Pump and Accumulator Tank System the right choice for your boat or caravan?

⚡ At a Glance
  • Flow Performance: Delivers 3.0 GPM flow and maintains pressure up to 45 PSI, while drawing up to 8.0A.
  • Best for: Owners of small boats, caravans or motorhomes needing reliable 12V freshwater supply and steady tap pressure.
  • Not ideal for: High-demand household mains replacement or systems requiring very large tank capacity.

12V DC pump rated at 3.0 GPM and 45 PSI, supplied with a 0.2 gallon accumulator tank and fittings. Self-priming and run-dry capable, constructed from materials suitable for drinking water.


Steadier water pressure - thanks to the accumulator tank

A 0.2 gallon accumulator tank stores a small reserve of pressurised water, absorbing pressure spikes and reducing frequent pump starts. Reduced cycling occurs because short demand events draw from the tank rather than restarting the pump each time.

More consistent flow at taps and showers, with fewer on/off cycles that lengthen component life and improve user comfort.

Efficient 12V operation - with a modest 8.0A maximum draw

Designed for 12V DC systems, the pump draws up to 8.0A under load, matching common boat and caravan electrical supplies. Lower current draw reduces strain on batteries compared with higher-draw units.

Suits battery-powered installations, helping preserve battery capacity during typical daily use and keeping run times longer between charges.

Safe for potable use - thanks to drinking-water compatible materials

Components are specified as safe for drinking applications, using materials suitable for contact with potable water. Included strainer helps prevent debris ingress, protecting internal seals and waterways.

Suitable for freshwater taps and onboard systems where hygiene matters, with reduced risk of taste or contamination from unsuitable materials.

✨ The 4 Key Reasons for Seaflo 33-Series Water Pump and Accumulator Tank System
  1. Low 8.0A Draw – Conserves battery power during regular use, extends run time.
  2. Accumulator Tank Included – Smooths pressure and reduces frequent pump starts.
  3. Run-Dry Capable – Tolerates temporary dry running to lower immediate failure risk.
  4. Fittings and Strainer – Supplied ready for plumbing, helps keep debris out of the pump.
📋 Technical Details at a Glance
  • Category: Home Improvement, Water Pump and Accumulator System
  • Voltage: 12V DC
  • Flow Rate: 3.0 GPM
  • Maximum Pressure: 45 PSI
  • Maximum Current Draw: 8.0A
❓ Frequently Asked Questions

Q: Is the pump suitable for drinking water systems?

A: Yes, materials are described as safe for drinking applications, making the system suitable for potable freshwater supply.

Q: Can the pump run dry without damage?

A: Run-dry capable and self-priming, designed to tolerate temporary dry running and to recover when water supply resumes.

Q: What electrical supply does the pump need?

A: Operates from a 12V DC supply and draws up to 8.0A at maximum load.

🏆 Our Verdict

Ideal for boat and caravan owners who need a compact, 12V water supply that keeps taps and showers steady. The combination of a 3.0 GPM pump, 0.2 gallon accumulator tank and drinking-water safe materials makes the unit especially useful where space and hygiene matter. While budget considerations vary, included fittings and protective features offer sensible long-term value for mobile freshwater systems.