Pond Pumps. All of the submersible pumps shown are specially designed for the recirculation of water in garden ponds, to create waterfalls or other water features.
When choosing a water pump for your pond one ofthe primary things to remember is the pumps electrical consumption
A healthy environment for your pond or water garden can only be maintained by ruuning the pump 24 hours a day, 7 days a week. As a result running costs can be expensive.
Water pumps have huge difference in their electrical usage. Most pumps now have wattage ratings on their packaging, making it easy compare costs: In general twice the wattage means twice the cost to run

Flow  v Pressure 
Many pumps are designed to pump a lot of water per hour, but when 'head' increases output decreases.
These types of pumps are generally used to supply waterfalls where a large through put is needed, and filtration is not required. Pumps providing high pressure usually have a smaller rated output than a similar size pump providing high flow. However the pumps output doesn’t drop off as quickly as the head increases. These pumps are more suitable for filteration systems and fountain heads.

Pond Pumps