AquaDuty Surface and Booster Pumps

Which AquaDuty surface pump do you need?

The choice comes down to how much water you need, how much pressure, and whether the water is above or below the pump. Peripheral pumps (AQD 60, 70, 80) give high pressure at low flow – ideal for one house fed from a tank at ground level. Single-impeller centrifugal pumps (AQD 146, 158, 170, 190) move more water at moderate pressure for transfer, irrigation and small pressure sets. Twin-impeller pumps (AQD-140-2 to AQD-200-2) put two impellers in series for more head at a useful flow, for multi-storey supply, long irrigation runs and pressure sets. The AQD 10H jet pump is the only self-priming model, so it is the one to use when the water level is below the pump. The PressurePro 700 adds variable-speed constant pressure for the quietest, steadiest household supply.

Models, specifications and prices

Controllers, seals and fittings

Prices include VAT and are taken from the live product pages at the time of writing.

Performance from the rating plates

AquaDuty publishes the operating range on each pump’s rating plate. The flow range is the band the pump is designed to work in; the head range gives the pressure across that band, and the maximum head is the shut-off pressure at zero flow.

How to size an AquaDuty pressure pump

1. Count the outlets that run together. Allow about 10–12 l/min per shower or tap, and 15–20 l/min per garden sprinkler.
2. Find the height. Measure from the water level in the tank to the highest outlet.
3. Add the pressure you want at the tap. 2 bar is about 20 m of head; 3 bar about 30 m.
4. Add pipe losses. Allow roughly 10–20 % of the pipe length for 25 mm pipe at normal household flows.
5. Pick the pump whose head range covers your total head at your flow.

Worked example: a house with two showers running (about 24 l/min), a tank at ground level, a first-floor bathroom 5 m up and 2.5 bar wanted at the shower (25 m). Pipe losses on a 30 m run add about 4 m, for about 34 m total. The AQD 70M (52 – 5 m over 5 – 45 l/min) or the AQD 80M (60 – 5 m over 5 – 50 l/min) cover this; add an AQD 01 controller for automatic start and stop. For three or more outlets at once, step up to the AQD-140-2 twin impeller.

Pump only, with AQD 01 controller, or PressurePro?

Construction and materials

Operating limits

Installation notes that prevent failures

• Mount the pump level, close to the water source, in a dry ventilated enclosure – IP44 motors are not weatherproof.
• Use a suction pipe at least the size of the pump inlet, keep it short, and slope it up towards the pump so air cannot collect.
• Fit a foot valve and fill the pump and suction pipe with water before first start (except the AQD 10H after its first priming fill).
• Fit a non-return valve and isolating valves on the delivery side.
• Protect single-phase pumps with a correctly rated breaker; three-phase T models need a motor starter with overload protection.
• Never run the pump dry – dry running destroys the mechanical seal within minutes. The AQD 01 controller adds dry-run protection.

Typical applications

• Household pressure boosting from a ground-level storage tank
• Transfer between tanks and supply to header tanks
• Garden and small-plot irrigation
• Pressure sets for small buildings (twin-impeller models)
• Shallow wells and sumps below the pump (AQD 10H jet pump)

Frequently asked questions

Related ranges

• AquaDuty pumps – full range
• AquaDuty submersible drainage pumps
• AquaDuty 3" borehole pumps (AquaPack)
• AquaDuty solar pump kit
• All pressure and booster pumps