ECO-WORTHY 110V 5.5GPM Diaphragm Water Pump: features, specs and who it suits

The ECO-WORTHY 110V diaphragm pump is a mains-powered, on-demand water pump for moving and pressurising water. It is listed for RV fresh-water systems, rain barrels, tankless water heaters, sprayers and irrigation. Here is what its specifications mean and how to match them to a job.

How a diaphragm pump works

A diaphragm pump uses a flexible membrane that moves back and forth to draw water in and push it out through valves. This design is typically self-priming, meaning it can pull water up from below its own level rather than needing to be filled first. It also tolerates some air in the line, which is why diaphragm pumps are common in RVs and boats.

Flow, pressure and lift

ECO-WORTHY rates the pump at 5.5 gallons per minute (about 21 litres per minute) and sets the pressure switch at 55 PSI (about 3.8 bar) by default. Flow is how much water moves, and pressure is how hard it is pushed. Real flow falls as pressure and lift rise, so the figure is a maximum, not what you get through a long, narrow hose uphill.

The brand lists self-priming up to 9.8 vertical feet (about 3 m) and a maximum lift of 131 feet (about 40 m). Self-priming height is how far below the pump the water can be, and lift is how high it can push. It runs on 110V AC at up to 1.5 amps, which ECO-WORTHY puts at about 165W.

On-demand pressure switch

A built-in pressure switch starts the pump when a tap or nozzle opens and stops it as pressure builds when the tap closes. ECO-WORTHY says it uses industry-standard fittings and that the factory setting is 55 PSI. Because it starts only when needed, it can supply a tap without a separate controller.

Protection and run time

The listing describes overload protection and ignition protection, and says the pump can run dry without damage. It adds that temperatures above 70°C (158°F) temporarily stop it from working. ECO-WORTHY says it supports running for about one hour. Continuous use for long periods is a different job from short, on-demand bursts, so check the manual's duty limits.

Liquids and uses

ECO-WORTHY says the pump handles fresh water, drinking water, low-salinity solutions and weak acidic liquids. It is described as suitable for rain barrels, tankless water heaters, sprayers and agricultural irrigation. It comes with garden hose adapters. The unit measures about 9.4 x 4.5 x 4.7 inches. Stay with the liquids named in the manual, and don't use it for fuel or solvents.

Who it suits

It suits RV owners, gardeners, and anyone who needs to boost pressure from a barrel or tank where an AC outlet is available. As it is a 110V unit, it fits North American mains supplies.

What to check before you buy

• Power supply: confirm you have a suitable 110V outlet and, outdoors, a protected circuit as local codes require.
• Flow and lift: compare your hose length, height difference and nozzle needs against the pump's listed figures.
• Pressure: check that a 55 PSI setting suits your sprayer, heater or fixtures.
• Fittings: confirm your hose or pipe connections match the adapters supplied.
• Liquid: make sure what you are pumping is on the manual's list.
• Placement and noise: diaphragm pumps vibrate and hum, so mount them securely, kept dry and protected from freezing.

The short version

• A 110V on-demand diaphragm pump rated at 5.5 GPM and 55 PSI by default.
• Self-primes up to 9.8 feet, with a lift of up to 131 feet; about 165W.
• Built-in pressure switch, overload protection and dry-run tolerance.
• Listed for fresh water and other mild liquids, with garden hose adapters included.
• Follow the manual and local codes for wiring and installation.

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