Primary use of the pond is swimming, so I'm going to assume you stocked some Pumpkinseed Sunfish to control any snails that might get introduced into the pond?

I would do option #3 and use a flocculant. Using the aerator will slow the aging process of the pond. In addition, I'd run 24/7 unless the system was designed to run for 1/3 of the day.

No need to run it once the water cools down to the mid 50's until there is around 2" ice and 2" snow covering the pond, then just run the winter diffusers.


www.hoosierpondpros.com


http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).