This calculator will help you to estimate the cost of operating any
given electrical pump, based on the average KWH (kilowatt hours)
used per day, and on the average cost per KWH charged by your
electric company.
How much UV do you need for your pond?
Purely for green water eradication, 8-10 watts per 1,000 gallons is usually recommended, but some pond keepers will maintain that, for a reduction of bacterial levels, this can be increased threefold to 30 watts.