The SWG has been a God-send. I used to be out there, testing chemical levels and pouring in bleach to do the BBB method. The SWG has reduced that to twice a month. It comes out to equal cost over 3-4 years in money alone, but that time saved has put it way over the top.
I got Circupool for $800, and paid someone $100 to install it, and another $50 in parts. Electricity costs every day is around 40c/day.
