You know, if pump time is the main concern there are a couple of solutions for that. First is to get a more powerful SWG -- even get a second one if you don't want to replace the first with a larger unit. Your 30,000 pool size is on the large size so is why a typical SWG unit has to be on so much. With more SWG power, you can run your pump a shorter period of time.

Another alternative to keep pump costs down is to use a variable speed pump and run at a slower speed. That way, you can have your long run time, but not use as much electricity while still getting the minimum single turnover per day that you need.

Richard