Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations Advice needed Stunted fish offspring/ misc stuff about my pond

Started refilling my pond... It's about time....
3 inch pump is listed at 322 GPM or about 20,000 Gallons Per Hour.. I think I will have to run it for 34 straight hours?? That should put me around 600,000 gallons + or - 100,000 gallons I think...