New to me Pool in New Hampshire

Hello all, new owners of a 20 by 40 foot vinyl liner in ground pool. We are currently running a Hayward 3/4 hp super pump and Hayward ec65a DE filter with a New Water chlorine dispenser. Currently the pool has been opened for the season and is running pretty well. I am considering using the BBB pool care system as I like the idea of using simpler products and chemicals. We have a Laars pool heater that is currently disconnected from our pool and are strongly considering building a DIY solar collector for our pool house roof.