Pond Boss Forums GENERAL QUESTIONS Help Well Output Estimate to keep up with pond

8.5 amp on 230 volt @ 10 cents per KW is 1226.68 KWH per month and $122.67 (per month)As far as beneficial aeration it would be minimal to none. If this well is for the pond only skip the pressure tank and just shoot it straight to the pond, your flow will be greater.