There is a wide range of pumps available and selecting the right size depends on the role it has to play in the pond and the size of the pond. Power Many self-contained water features such as pebble ponds , carry recommendations regarding the size of the pump required.
Some manufacturers make a range of special feature pumps for such applications.
These are often good value for money containing many accessories, including alternative fountain heads to create different effects. When buying a pump to create a special effect in a pond, such as a fountain , the size of the pump will determine the size of the effect. Therefore, if you require a one metre fountain, a pump with a flow rate of 600 litres per hour will be ideal. Waterfalls work on a similar rationale to fountains. The rule is 133 litres per hour per centimetre width, or 333 lites per hour per inch width.