What is a submersible pump?
Almost all modern ponds are equipped with either a submersible pump or an external pump. Some of which are housed in a skimmer or located out of the pond. Submersible pumps are usually compact and offer a range of water flow from as low as 50 gallons per hour and well over to 10,000 gallons per hour. Most residential ponds operate around 4,000-8,000 gallons of water flow per hour and a submersible pump can easily handle this flow rate.
Submersible pumps operate submerged under the water and are often considered solid handle or sump style. A solids handling pump can often handle solid waste such as sewage, leaves or any debris up to a certain size. This is an ideal style since they rarely get clogged which can lead to early pump failure. Other submersible pumps may be equipped with an intake screen or grate since they can-not handle large debris. Both style of pumps are a great option for small to medium-sized water features.
Submersible pumps can be plumed with PVC pipe or with rubber or plastic tubing with appropriate fittings. The average life span of this type of pump is 3-5 years if properly taken care of. Because of their compact size efficiency is usually sacrificed. These pumps typically cost 30% more to operate than an external pump with the same water flow.