A pond pump plays an important role in an artificial pond. If a pond pump is not used in artificial ponds, the water will remain still and this may ultimately result in stagnation and the formation of a marsh. A pump is essential to filter and circulate the water in a pond.

To maintain the quality of water, it is very important to circulate the water at least once every two hours. This will avoid the accumulation of mosquito larvae on the stagnant surface of water. It is important to find out the amount of water that is present in the pond and then purchase a pump which can pump a minimum of half the volume every hour. In simpler words, the GPH or ‘gallons per hour’ ratings should be about 50% of the complete pond volume.

A pond pump is an electrical device which requires a water-resistant cord. The cord can be covered between an outdoor electrical outlet and a pond. Pond pumps are generally installed underwater, and they do not create any distracting noise. If the pump is used for a waterfall, then the GPH pump ratings must be increased.

It can be extremely difficult to find a suitable pump for waterfalls, as these pumps usually have two ratings. If unsure as to which pump should be purchased, a multi-purpose pump can often be the best choice. In order to allow the maximum amount of water circulation, it is always advisable to place pond pumps at the opposite end of the pond to a waterfall.