BoPi will cover most needs of any pool owner. With its 4 relays and 2 peristaltic pumps, BoPi can control the pump, the lights, a secondary pump or any other electrical equipment in you pool.
With its pH and ORP sensor, BoPi can check that your water is in good condition and if needed, can inject liquid pH- or pH+ or liquid Chlorine (2 products possible). If you have a salt pool, BoPi can check the levels and turn the generator on when needed, its all very configurable and made to fit the vast majority of pools.
Furthermore, with its 2 temperature sensors, BoPi can measure the water temperature before and after the heating system or simply the water temperature and outside temperature. Its all up to you to decide what you want.
If you pool is already equipped with a pH regulation system, you can just not use BoPi’s pH control and set it up at a later date should the existing system fail. Same goes for the ORP and Chlorine injection.