Four garden air pumps displayed outdoors on a stone ledge beside a pond, with one pump turned on and spraying bubbles into the water. Large text at the top reads “AIR PUMPS.

AERATION

A Dragonfly bird feeder set displayed outdoors on a wooden table with green garden foliage in the background. The set includes a black metal garden hose feeding station with two hanging seed feeders, a clear bowl, a green and black bird feeder bowl, a copper-top seed container, and two branded product boxes.

BIRDING

Smart rain-point irrigation system shown in a garden setting with a sprinkler spraying water, a smart timer, a weather device, and a faucet, under the headline 'SMART IRRIGATION'.

IRRIGATION

A black Water House waterfall pump shown beside its retail box and three connector fittings, set outdoors on a rock in front of a waterfall pond. Large text on the left reads 'LARGE WATERFALL PUMPS.

WATERFALLS

Water House borehole pump kit displayed outdoors on rocks beside a water spigot, with three stainless steel pump cylinders, a blue control box, a coiled blue hose, and the product box. Large text reads 'BOREHOLE PUMPS'.

BOREHOLE

Clear plastic garden tubing shown both inside its blue Water House branded bag and as loose coils on a wooden surface, with a garden pond and waterfall background and the text 'CLEAR TUBING' at the top.

PLASTIC TUBING

PRESSURE PUMPS

A Dragonfly pond pump shown next to its retail box on a wooden deck, with a garden pond and waterfall background. The text 'POND PUMPS' is displayed in the upper left corner.

FISH PONDS

AERATION

BIRDING

IRRIGATION

WATERFALLS

BOREHOLE

PLASTIC TUBING

PRESSURE PUMPS

FISH PONDS

Sizing Tool

Our Quick and Instant Pump Size Calculator is used to calculate the volume of water in your water space.

This number helps you choose a pump that can move enough water to suit the size of your pond or system, without being too weak or too powerful.

Simply fill in the details below for the answer:

Pump size calculator

Fill in the three measurements below.

Measure the length, width and average depth of your pond or tank in metres.

Measure straight up from the water surface to the highest point where water comes out.

Not sure? Get a free pump sizing from our team

Answer these 6 quick questions and our Waterhouse pump specialists will help you find the right solution. Your calculator answers are filled in for you.

Water type

5. Where will the pump be installed?

6. What power source is available?

Do you need us to install it?

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