A pump is a great investment for domestic and industrial purposes, but they shouldn’t be bought without some careful consideration

Interested to find out 5 considerations to make when buying a pump?

Read more from the Perth water pumps specialists at APT Water to find out.




When it comes to water pumps, discharge, is defined as the line between the pump to the discharge point. Ask yourself the following questions to better your purchase decision:

  • Are you dosing, or transferring into a pressured pipe? If yes, then what is the pressure?

Or is it an open free flow? (An open free flow is when the discharge pipe is fully open at the end with no restrictions).

  • What will the vertical and horizontal lengths be?
  • What about friction loss? (referred to as the pressure lost in the pipe/pump and process)




Identify if you have any preferences and required accessories before buying just any pump.

You can do so by narrowing down your preferred power source and checking its stability – for example, 240v, 415v, 50/60 Hz, mining/industrial capacities, diesel, petrol or air powered and so forth.

Then it’s time to work out the need for any accessories.


  • The need for base plates (the plate where the pump and motor are mounted)
  • Transportable trollies
  • Variable speed motor (to control flow in the system by altering the impeller speed.

As always, the answers you seek for your next pump purchase can be found with APT Water.




One of the greatest considerations to make before purchasing a pump is identifying and understanding the fluid you will inevitably be working with.

Ask yourself:

  • What is the specific gravity (density of the substance) and viscosity (resistance to gradual distortion) of the pumped fluid?
  • Are there any chemicals present? Identify their names, concentrations and potential risks.
  • Are there any solids involved? Know their particle size, ratio of fluid to solids and their texture (are they smooth or sharp?)

Of course, the temperature is also relevant when pumping fluid. Remember the ambient temperature is 20 degrees Celsius.




The flow indicates the transferring rate of the liquid involved.

Understand the following:

  • Whether you’re decanting (gradually pumping from one container to another), dosing (discharging fluid in a control manner to achieve exact fluid amounts) or transferring which is simply moving the fluid from one place to the other.
  • Again, you will want to know if any chemicals are present in your flow rate and transfer process.




The pump’s suction is the line from source to pump.

Before you buy a pump, identify the length of the envisioned suction line, the necessity of a self-priming pump (one that comes with reserved process fluid to vacuum and lift fluid from its source), and where you’re pumping from.

APT Water have the solutions you need when it comes to pump products, regardless of use and for every market sector.


Looking for a reliable, affordable and high-quality water pump supplier?

Contact APT Water today for the best advice, products and service for your commercial pumping needs.

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