Pumps are central to the survival of any pond. Pond pumps keep the water circulating
and clean, helping to sustain the life of the fish and plants living there. A good
pump will help keep your cleaning to a minimum. If you have fish in your pond, you
must have a pump running 24/7. It is a good idea to invest in a backup pump for this
reason. There are two main types of pumps-external and submersible. The type of pump
you will need is mostly determined by the size of your pond.
External pumps are well suited to medium or large ponds that contain 1000 or more
gallons of water. They are powerful and efficient and are able to handle larger water
flow. An ideal pump will circulate the total volume of your pond in one hour. External
pumps are also designed to work with biological filters. Another advantage to external
pond pumps is that they usually last a long time and are easy to repair. They are
also easy to clean since most come with removable traps.
Submersible pumps are good for small ponds with 200 to 800 gallons of water. They
are easy to connect to submersible filters used in most small ponds. There are many
choices for submersible pumps, so when choosing your pump be sure to keep in mind
what it will be used for. If you have a waterfall, you will need a pump with a higher
flow rate to accommodate it. Keep in mind the general rule that the pond’s volume
should circulate at least once per hour.
There are also some alternative pump types available for those who are environmentally
conscious. Many pond owners are switching from electric to solar powered pumps. These
are a great choice because they cost nothing to operate and are environmentally friendly.
A solar pump will charge during the day so that it keeps running at night. One thing
to consider when determining whether a solar pump is for you is the location of your
pond. The pond must be in direct sunlight during the day for the pump to be able
to provide power. A pond that is located under heavy tree cover or other shade will
not be conducive to a solar pump.