Water Well Submersible Pump: The Complete WA Buyer's Guide

A water well submersible pump sits deep inside your well or bore, fully underwater, pushing water up to the surface instead of sucking it up from above. For homes, farms, and reticulation systems across Western Australia, this design is the most efficient and reliable way to draw groundwater from the water table. This guide explains how these pumps work, how to size one correctly for your bore, and how to buy the right model the first time without paying for performance you do not need.

What Is a Water Well Submersible Pump?

A submersible pump is a sealed unit where the motor and the pump are combined into one body and lowered directly into the water source. Because the motor is cooled by the surrounding water and pushes the water upward rather than pulling it, it handles deep wells and boreholes far better than a surface or jet pump. There is no loss of prime, no cavitation, and very quiet operation, since the working parts sit well below ground. Stainless steel construction protects the internals against the sand, salt, and iron that are common in Australian groundwater, which is why these pumps are the standard choice for bore water supply.

Water Well or Bore? What Australians Are Really Searching For

In Australia, the words bore and borehole usually mean the same thing as a water well: a drilled hole that taps an underground aquifer. Most West Australians say bore, while well is more common overseas and in some rural districts. The pump itself is identical. So if you are shopping for a water well submersible pump, you are really looking for what local suppliers list as a submersible bore pump. Knowing both terms helps you compare every option on the market and avoid overpaying.

How to Choose the Right Submersible Pump for Your Well

Match Flow Rate and Head to Your Well

The two numbers that matter most are flow rate, measured in litres per minute, and head, measured in metres. Head is the total vertical distance plus pipe friction the pump must overcome, known as total dynamic head. Start with your bore driller's report for the bore depth and standing water level, then add the height up to your tank or outlet. Selecting a pump from its performance curve, rather than guessing, prevents weak pressure and protects the motor from premature wear.

Single-Phase or Three-Phase Power

Most WA homes run single-phase 240V, while larger farms and commercial sites often have three-phase 415V available. Three-phase pumps are usually more efficient for high flows, but single-phase models paired with a quality pump controller suit the majority of household bores. If you are not sure which supply you have, our team can confirm it before you order so you never buy the wrong unit.

Build Quality and Materials That Last

Look for 304 stainless steel housings, hard-wearing impellers, and a trusted motor. Brands such as Grundfos, Davey, and Franklin are engineered for continuous duty and long service life in harsh conditions. A cheap pump that fails in the middle of summer costs far more in downtime and replacement than a quality unit that simply runs for years.

Best Water Well Submersible Pumps for Western Australia

For shallow to medium bores, the Grundfos SQ and SQE range delivers smooth, controlled flow with built-in dry-running protection, which is ideal for Perth, Peel, and Wheatbelt properties where the water table drops over summer. For deeper bores and higher demand, the Grundfos SP submersible borehole range scales up to serious flow for irrigation and farms. Davey and Tsurumi round out the line-up for transfer and drainage. Every pump we ship is matched to your bore, so you get the right performance from day one.

Controllers, Pressure Tanks and Accessories That Protect Your Pump

A submersible pump performs best as part of a complete system. A controller manages start and stop cycles and guards against dry running when your water level falls. A correctly sized pressure tank smooths delivery and reduces motor cycling, which directly extends pump life. Float switches, level probes, and quality cable complete a dependable setup for any WA bore.

Installation and Water Quality Tips for WA Bores

Always have your pump installed to Australian plumbing standards and protected by an RCD for safety. WA groundwater can carry iron and minerals that stain and clog fittings, so a screen filter helps protect your system. Test your bore water before connecting it for household use, and check the cable, seals, and pressure regularly to keep everything running through the dry season.

Why Buy Your Submersible Pump From Pumptastic

Pumptastic is a Perth-based pump specialist shipping Australia-wide. We stock genuine Grundfos, Davey, Onga, and Tsurumi pumps, give real expert advice over the phone, and dispatch fast with free shipping on orders over $100. If you are not sure which pump suits your bore, contact our team or call (08) 6384 5884 and we will size it for you before you buy.

FREQUENTLY ASKED QUESTIONS 

1. What is a water well submersible pump?

It is a sealed pump and motor combined into one unit that is lowered into a well or bore and runs fully underwater. It pushes water up to the surface, which makes it far more efficient than a surface pump for deep water sources.

2. Is a water well pump the same as a bore pump in Australia?

Yes. In Australia, and especially in WA, a bore or borehole is the same thing as a water well. A submersible bore pump and a water well submersible pump are the same product, just described with different words.

3. How deep can a submersible bore pump go?

It depends on the model. Household submersible pumps commonly handle bores from around 20 to 100 metres, and high-head models can lift water from much deeper. Your bore driller's report tells you the depth you need to size for.

4. How do I know what size pump I need for my well?

You need two figures: the flow rate in litres per minute you want, and the total head in metres the pump must lift against. Match those to the pump's performance curve. If you send us your bore depth and water level, we can size it for you.

5. Do I need single-phase or three-phase power?

Most WA homes are single-phase 240V, which suits the majority of household bore pumps. Larger farms and commercial sites often have three-phase 415V, which can be more efficient for high flow rates. Check your supply before ordering or ask our team.

6. What is dry running and why does it matter?

Dry running is when the pump keeps operating after the water level drops below the intake, which quickly burns out the motor. A good controller or a pump with built-in dry-running protection shuts it off automatically and protects your investment.

7. Can I run a submersible bore pump for reticulation and the house? 

Yes, many are sized for both garden reticulation and household supply, usually combined with a pressure tank and controller to maintain steady pressure. The pump just needs to be sized for the combined peak demand.

8. What is the best brand of submersible bore pump in Australia?

Grundfos, Davey, and Franklin are among the most trusted for reliability and long service life in Australian conditions. The best choice still depends on your bore depth, flow needs, and power supply.

9. Do you deliver submersible pumps across Western Australia and regional areas?

Yes. Pumptastic is Perth-based and ships Australia-wide, including regional and remote WA, with free shipping on orders over $100 and fast dispatch.

10. How much does a water well submersible pump cost?

Prices range widely depending on flow, head, brand, and whether you need a controller and tank. We stock options across the range, and our team can recommend the most cost-effective pump that still meets your bore's requirements.