I have a 20k gallon pool, in sw washington. The pool has an old, broken heat pump I plan on replacing. I would also like to add a swg and a control system that I can operate my pump, heater, and swg from. Currently have an old dial style timer for pump. I will be self installing all products with the help of a friend who does Hvac and has low voltage certifications. Currently been looking at raypak and heatsiphon Heat pumps, and just started looking at swg's and control. Looking for help on deciding what setup would be best.