A lot of residential pool techs learn water chemistry the hard way: a few rules of thumb, a few opinions from the internet, and a lot of costly guessing when something won’t clear up. We wanted to change that conversation, so we brought Terry Arko back on to share real news about a new training rollout that preserves Bob Lowry’s legacy while making it easier for today’s pool service pros to actually use. We dig into why Bob Lowry’s Pool Chemistry Training Institute (PCTI) mattered so much fo...