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Submersible pumps can operate underwater and are used for various purposes, including sump and sewage pumps. They work by protecting their motors from pumped liquid, but may corrode and be difficult to repair. However, they are self-priming and require less work than standard pumps. When choosing a submersible pump for home use, consider the specific task it will perform.
A submersible pump is a pump that can be placed under water and still perform its intended purpose. Some pumps may be designed to operate completely submerged, while others may be submerged or located in a dry area. It is important to understand what type of pump you are dealing with so that you do not suffer damage while using it.
Types of submersible pumps include sump pumps and sewage pumps. These are the types most residential users will be most familiar with. However, this pump can also be used in a number of other applications such as well pumps, fountain pumps and borehole pumps.
Submersible pumps work by protecting their motors from the pumped liquid. Usually the motors are placed in a sealed compartment filled with oil. Most of the motors used in these pumps are electric, running on alternating current or direct current.
The advantages of a submersible pump are numerous. Firstly, it has the advantage of being self-priming because the substance it is pumping, usually water, is right there next to the pump itself. Also, the submersible pump may actually have to do less work than a standard pump simply because it is closer to the liquid being pumped.
There are also some disadvantages to submersible pumps. There is a possibility that the pump will corrode and lose its seals, thus allowing liquid to enter the motor housing and causing substantial damage to the unit. Also, because these pumps are underwater for a good portion of their life, accessing the pump for repairs can be difficult.
In home uses, most of these problems are somewhat reduced. A submersible pump in a home may not be submerged most of the time. If it is, it may not be fully submerged. Even so, the pump should be easily accessible.
When choosing a submersible pump for home use, many are suited to specific tasks. Some may be able to handle solids better and therefore would be good slurry pumps. Other standard sump pumps may simply be suitable for removing water from unwanted areas, such as flooded basements.
