I insisted on clean filters. And yes, you need to shock the water at the correct time with chlorine.Cannonpointer » 24 Jun 2023, 3:27 pm » wrote: ↑ I used shock when problems arose - NEVER used chemicals beyond chlorine. Kept my filters clean, policed my pool for foreign matter.
Same water for nine years - people don't know. And that was WITH my pit bull using the pool regularly.