So I had been running 2ish ppm on chlorine since opening running 3” tablets in my in line chlorinator. I turned off the pump to add 2 Maytronics solar panels(verdict still out if they are working) and since since then I have twice had to shock the pool because the chlorine was reading 0 on by weekly check. At first I thought it was the in line unit but I’m thinking not after reading a lot more in pool school. My ph and alkaline level have stayed 7.5 and 120 so no changes there only a dip in chlorine. My tester(aquacheck) doesn’t show the other levels mentioned to check so I am ordering a new test kit tonight(any opinions on a good kit on amazon would be great). I have a theory though but I wanted to see if I am way off here. When I added the panels I changed the pump speed and timing to only run it when the panels are getting sun. Prior I was running 9am-7pm at 1200rpm with Chlorinator set at 3. Now I’m running 11am-5pm at 1500rpm(to get the 49gpm recommended by maytronics) still at a 3. I upped it to a 5 this week and same issue. Going to try a full output next. Is the shorter run time just not letting enough get into the water or do I have a chemical or algae issue? Oh and the water looks perfect by the way no clouds or visible issues. Thank you!!