I agree with the cost per month. We recommend only running our large fountains for display only during the day and part of the night with lights.

If for aeration only, we would recommend operation from about 10:00 PM to 7:00 or 8:00 AM when the O2 is the lowest.

The formula you requested is as follows:

# of Watts x 720 (Hours in a month) / 1000 = kw of consumption per month.

kw consumption per month x $ per kw hour = monthly cost.


Cary Martin