So I got to test the Stenner while out of town for four days. Pump is a 5gpd running three hours a day with a cya of 70. Got home from DC yesterday and ran my numbers and found an FC of 3. Any ideas.? I had been running the pump from 8am to 11 am. I thought maybe it was going in so slow that the sun was getting it to soon. I changed the times to run from 2am to 5am to see what will happen.