smithy
Koi Lover
Apr 16, 2007, 11:59 PM
Post #2 of 3
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Flow rate is quite simple it is the amount of water which travels around our ponds. Some filters have maximum flow rates- for example a filter may have a flow rate of 10,000 litres- if the pump is capable of 12000litres per hour, the filter will overflow as there is more water coming into the filter than what can be let out with the current outlet.
Experienced koi keepers try to have the whole volume of their pond circulated within 1-3 hours. If the pond is 20,000 litres then they need a pump capable of a flow rate of 20,000 litres per hour if they want to circulate the entire contents of their pond in 1 hour.
Hope this helps
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