On our special 50th episode of the Pool Pro Podcast, returning Hasa guest, Terry Arko, describes the difference between breakpoint chlorination, superchlorination and hyperchlorination and when they should be used. Using the term "shocking a pool" has many different meanings depending on the desired outcome. What Terry has to say about breakpoint chlorination may shock you! To read Terry's AQUA article on this subject, click here https://aquamagazine.com/features/shock-oxidation-superchlorination-hyperchlorination-breakpoint-chlorination.html