Did you just turn on your irrigation system only to hear a loud humming noise with absolutely zero water coming out? Or maybe you are standing next to your backyard swimming pool listening to the motor scream while the water level stays completely still.
Dealing with a water pump not working is incredibly frustrating, especially when you need to water your crops or clean your pool during a scorching Australian summer. The most common culprit behind this massive headache is a sudden loss of suction.
If you want to get your water flowing again smoothly, mastering the art of priming the water pump is the absolute most important skill you can learn as a property owner.
Let us look at why reliable water transfer is so critical down under right now. Recent data from the Australian Bureau of Statistics shows that national household water consumption recently jumped to a massive 1,868 gigalitres in just one year.
Furthermore, with over 1.1 million backyard swimming pools across Australia, government energy reports show that pool pumps alone can account for up to 18 percent of a typical household electricity bill.
When your pump runs dry, you are not just risking expensive mechanical damage, you are wasting huge amounts of expensive electricity.
What is Priming? Quick Overview!
Before we fix the issue, we need to answer a very basic question. Exactly what is priming? In simple terms, priming is the process of manually removing all the empty air from the pump casing and the suction hose, and replacing that air entirely with water.
Most standard centrifugal pumps cannot suck air. They are designed to push heavy liquids. If there is a pocket of air trapped inside the impeller housing, the spinning blades will simply whip the air around in circles without creating any actual suction.
By completely filling the chamber with water before you turn the engine on, you give the impeller the solid mass it needs to grab the water and create a continuous vacuum.
Top Reasons Your Water Pump is Not Priming
If you have tried priming the water pump but it keeps losing its suction, you likely have a mechanical fault hiding in your setup.
Here are the most common reasons your system refuses to pull water:
- Air leaks in the suction line: Even a tiny pinhole leak or a loose clamp on your intake hose will allow air to enter the system, completely destroying your vacuum.
- A blocked suction strainer: If the strainer sitting in your dam or pool is clogged with algae, leaves, or mud, the water simply cannot enter the hose.
- A failing foot valve: The foot valve acts as a one way door at the bottom of your suction hose. If it breaks, all the priming water will immediately drain back into the source before you can start the engine.
- Worn internal seals: If the mechanical seal around the spinning motor shaft is cracked, the pump will suck air directly into the main casing.
How to Prime a Water Pump Correctly?
Knowing exactly how to prime a water pump will save you from burning out your expensive motors. If you own a standard water transfer pump for your farm or property, you must follow a very specific order of operations.
Please follow these exact steps to ensure a safe startup:
- Step One: Ensure the pump is completely turned off and disconnected from any electrical power or ensure the petrol engine is switched off.
- Step Two: Locate the priming plug sitting at the very top of the pump casing. Use a wrench to carefully unscrew and remove this plug.
- Step Three: Insert a garden hose or use a bucket to pour clean water directly into the priming hole. Keep pouring until the water fills the casing and reaches the very top of the opening.
- Step Four: Wait a few minutes to see if the water level drops. If it drops rapidly, your foot valve is leaking. If the water level stays steady, wrap the priming plug thread with some Teflon tape and screw it back in tightly.
- Step Five: Turn the pump on. It might spit and sputter for a few moments as it pushes out the last bits of trapped air, but it should begin flowing a solid stream of water within thirty seconds.
How to Prime a Pool Pump? Key Steps to Follow!
Because swimming pools have built in filtration systems, the process looks slightly different. If you are wondering how to prime a pool pump after cleaning your baskets, the process is incredibly straightforward.
First, turn off the power at the main breaker to ensure safety. Next, close the skimmer valves to prevent water from rushing backwards. Unscrew the clear plastic lid sitting directly on top of your pool pump basket.
Pour two or three large buckets of pool water directly into the basket housing until it is completely overflowing.
Once it is full, inspect the large rubber O-ring under the lid. Make sure it is clean and lubricated, then lock the lid back down tightly. Open your valves and turn the power back on. The pump will draw the water through the filter and establish a strong flow.
Checking Your Water Pump Pressure Switch
Sometimes the pump itself is perfectly primed, but it still refuses to turn on when you open a tap in your house. In these cases, your water pump pressure switch is usually to blame.
The water pump pressure switch is a small mechanical device that tells the pump when to turn on and shut off based on the water pressure inside your pipes.
If dirt or mineral scale clogs the tiny sensor pipe connecting the switch to the water line, the switch will incorrectly assume your pipes are already full of pressure and will refuse to send electricity to the motor.
Cleaning the switch contacts and clearing out the sensor tube is often the easiest way to fix a water pump not working in a residential setup.
Choosing Thornado for Reliable Australian Water Solutions
When you rely on water for your livelihood, you need equipment that performs flawlessly in extreme heat. This is exactly where Thornado shines.
What makes Thornado water pumps ideal for Australian farms?
Thornado heavy duty transfer pumps feature robust cast iron impellers and rigid steel roll cages. They are specifically engineered to withstand harsh dust, intense heat, and heavy daily use without cracking or failing.
Can I run my electric transfer pump using a Thornado generator during a blackout?
If your property relies on a large electric water pump, a sudden grid failure can be devastating. However, electric pumps require massive starting watts to get their impellers moving. By pairing your water system with a powerful
Thornado 8kVA or 10kVA backup generator, you provide the massive surge of pure, stable electricity required to start the pump safely. This guarantees that your property maintains consistent water pressure for irrigation and livestock even when the entire regional power grid goes completely dark.
Conclusion
Understanding the mechanics behind your equipment is the ultimate key to a stress free property. The next time you find your water pump not working, you do not need to panic.
By understanding what is priming? and executing the exact steps on how to prime a water pump or how to prime a pool pump, you can easily restore your suction in a matter of minutes.
Always remember to check your hoses for air leaks, keep an eye on your water pump pressure switch, and invest in high quality, dependable machinery from Thornado to ensure your water keeps flowing all year round.