FAQ: Submersible water pumps

submersible pumpsHere at Pump Sales Direct, we are proud to offer a range of quality Submersible pumps. These pumps are designed to be underwater and therefore are perfect for outdoor water projects, whether it be a pond, a fountain or a pool. Understandably, not everyone is going to have impeccable knowledge when it comes to pumps, but at Pump Sales Direct, we consider ourselves experts on the subject. Here are a few common questions & answers related to submersible water pumps.

How much of the pump is actually submerged in water?

Everything. A submersible pump’s purpose is to be completely submerged in fluid, including the motor which is fixed to the body of the pump.

How does the motor function when surrounded by water?

While it is true that when a motor is exposed to water it can result in short circuits, the pumps are designed to be immersed in water. The machinery possesses a set of seals that fully ensure liquid is kept out of the motor.

Can the pump work in dirty water?

It depends. We stock two types of pump: clean water pumps and dirty water pumps. The clean water pumps are used for generally clean water sources, such as pools or cisterns, however, they cannot pump fluids that contain particles greater than 1mm in size. Dirty water pumps, on the other hand, are capable of this kind of task.

Can dirty water pumps be used in clean water environments?

Yes, there is no problem with doing this. Also, you will have the additional benefit of being able to filter out unwanted contamination, such as, mud or salt.

What are the different application to these pumps?

There are many applications for these pumps. A single stage submersible pump (one impeller) is used in sewage pumping, industrial pumping, slurry pumping, drainage and pond filters. A multiple stage submersible pump (twin impeller) is typically lowered down into a borehole and is generally used in domestic, business or industrial settings where water extraction is needed, as it creates artificial lift.

What are the common reasons for pump failure?

Generally speaking, the typical reasons for pump failure range from: the tank size being too small for the job it has to perform, improper choice of pump, running dry and short cycling.

Can I install a pump myself?

While you can do this yourself, we would recommend hiring a professional as the whole unit must be installed with the greatest of care. This is also true for servicing, as the pump will need to be extracted from the ground for a proper examination.

How reliable are they?

Submersible pumps have a stellar reputation, they are well-known for their reliability and for posing little to no problems given the proper care. Sometimes, pumps can last approximately 20 years without needing servicing.

Can submersible pumps be used in professional, industrial settings?

Yes. These pumps are used in various settings, including: seawater, firefighting, well-drilling, offshore oil drilling rigs, sewage treatment plants and irrigation systems.

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