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What are sump pumps?
A sump pump is placed below surface level in a pit known as a basin. A sump pump automatically removes excess water using a discharge line. This line is connected from the sump pump to a drainage area. There are several types of sump pumps used for various applications.

- Submersible sump pumps: Submersible pumps contain the motor and pump in one unit and are completely submerged in the water basin. They provide relatively quiet operation and save space.
- Pedestal sump pumps: These units consist of a separate pump and pump motor. The motor is placed above the basin with a hose running to the pump. The pump pushes water through the hose to the drainage area.
- Wet prime sump pumps: Commonly known as centrifugal pumps, wet prime pumps are all-in-one pump units that are easy to operate and maintain. They are best suited where there is an abundance of liquid for constant running as required.
- Belt drive sump pumps: These pumps provide the ability to increase or decrease the pump speed using pulley and belt drive configurations, so you can match water or sludge removal with your specific needs.

How do sump pumps work?
Every type of sump pump has its particular function. Vertical flood pumps are suited to narrow or shallow sump pits that get emptied frequently. A vertical pump motor can run at all times to reduce the risk of flooding. Coates Hire industrial and commercial sump pumps require appropriate drainage and disposal of dirty water. A vertical pump will minimise the risk of storm water penetrating the ground where it could otherwise damage foundations and walls, or impact equipment below ground level.

Submersible pumps sit in the groundwater, and are installed in the sump pit. The water helps to cool the pump and stop it from overheating. Pedestal pumps, on the other hand, are air cooled and require plenty of space around the pump for air circulation. They often include a float switch that activates when water levels reach a certain point. Pedestal pumps can be triggered by different types of switches.
  • - Tethered switches attached to the pump, usually used for wide and deep sump pits
  • - Vertical switches that activate more often, used in shallow or narrow sump pits
  • - Electronic switches that read levels of water for the pump to turn on or off
Choosing the right sump pump and pump switch is important. If in doubt, your local Coates Hire pump specialist can assist with your choice.
How to install sump pumps?
Although it is reasonably cost effective to have a professional install your sump pump, it is possible to perform the task yourself. Here are the steps to take for a submersible pump.

1. Install the pit at least 20cm from foundation footings. If breaking through concrete, use a jackhammer from Coates Hire. Dig out soil from the pit, allowing room around the pump liner for gravel backfill. The liner top should sit level with the surface. Set the pit liner in the hole, prepare the surface around the hole, and cap the excavation with concrete at a level that allows water to flow toward the pit.
2. The pump can then be lowered into the pit with a riser that sits just above the pit liner. Check the float position, ensuring it has room to move up and down without interference. Attach a liner lid over the riser. A check valve on the riser will ensure water doesn’t recede back into the pump when it is turned off.
3. Add a second riser above the riser valve and secure it with a hose clamp. Run a drainage hose away from the site to a place where water won’t return via flow or seepage. How you proceed is dependent on the slope of the area, with the drainage hose running over the ground, or slightly underground.
4. For electrical sump pumps, plug the pump into a certified power point. You are now ready to test your sump pump. There are many more micro-steps to take for full installation of a sump pump. For larger industrial and commercial sump pumps used during construction or emergency water removal,  speak to a Coates Hire pump specialist.

Do I need a pump?
Sump drainage pumps are essential wherever there is the possibility of dirty water or grey water flooding an area and destroying property or foundations. Dry pumps are oil sump pumps, with the system often using several pumps and a separate oil reservoir. These bigger systems used in major earthworks and mining applications provide better reliability, greater oil capacity and the ability to handle high flow rates. Smaller wet pumps are ideal for residential properties and builds where less dirty water or seepage is expected and as a precaution against occasional flooding.
Where to hire sump pumps?
Coates Hire is the obvious choice. We supply oil sump pumps, submersible sump pumps, wet prime truck mounted pumps, small sump pumps, 12 volt sump pumps, basement sump pumps and various other sump pump applications for your situation. We can also supply a float switch for sump pump reliability and assist you with sump pump installation.

With an Australia wide network of hire branches, there is bound to be a Coates Hire
branch near you. We can discuss your requirements over the phone or you can speak to an expert at your local branch. We even have an online service where you can reserve equipment so it is ready for the job when you are.
How much are sump pumps to hire?
This will naturally depend on the type of pump you require and the duration of hire. However, with more available hire products than anyone else, from small grey water pumps to huge truck mounted pumps for industrial and mining applications, you are assured of getting exactly the right pump for the lowest available hire rate. Our sump pump hire range is designed to satisfy every type of customer, and we can even assist with installation. Speak to a Coates Hire specialist by contacting us today, and get your project on track for a superior finished product.