I know that the pump is oversized. Trust me, I won't be "pool stored" on pumps again. This will be its third season in use and I did have an algae bloom last year (which is how I discovered this site and learned that the great "deal" on a higher HP pump that the pool store pushed wasn't such a great deal). Anyway, it is what it is and I need to figure out how to use what I have to take care of my problem.