I have been lurking for the past week or so since I have had my first "poool issue" in the 11 years since it was built. I have done all my openings and closings for the past several years and have had no problems. I was a pool store guy and used pucks in an inline chlorinator without a hiccup - pool was always sparkling and test strip readings always perfect (I know, I know - I bought a "real" kit once this week's problems started).
Anyway, when I opened my pool, I shocked it (6 gallons 12% liquid), added algaecide (1 qt.), conditioner (1 gallon) and did some vacuuming (Meyco mesh cover). Pool was sparkling clear in a day or two so I tested water - all levels looked fine with strips except for free and total chlorine - looked like 0ppm each. Added more liquid shock (8 bottles) - still no reading. Pool store idiots were clueless. More liquid shock next am - again, reading back to zero within hours.
Researching here and elsewhere I found extensive information on "breakpoint chlorination" necessary for proper shocking. I bought a K-2005 test kit at my local store (they did not have FAS-DPD K-2006 so I got the best they had on hand). Levels were all generally within normal ranges - Ph 7.5; ALK 80; CYA 60; FC 0; TC 4. Reading here, I bought an ammonia test kit and found 1 ppm ammonia. Next question was how much chlorine to use so that I put enough in to reach breakpoint. I found this article http://www.pested.msu.edu/Resources/bul ... 1chap7.pdf which was VERY helpful in determining exactly how much chlorine to add - apparently I was feeding the fire only to have the new chlorine converted almost immediately. I ended up adding almost 16 gallons of 12% liquid and now my free and total chlorine are very high, but holding for well over 24 hours with almost no loss.
The test kit I have is obviously having problems with the high chlorine levels and most tests are screwed up because of it - Ph Purple, couldn't get it to change color; ALK green OK couldn't get it to red; CH - pinkish - couldn't get it to blue; CYA about 70 ppm. I tried the Aquachek 6 way strips and they seemed to read everything within their prescribed range except for free and total chlorine which were way high.
My question: How long do I have to wait for the chlorine to come down to reasonable levels so that I can properly test and adjust other levels? It has been raining a lot here, but the water is crystal clear and it doesn't seem to be dropping the chlorine levels that much.
Thanks to all who run this board, it is an invaluable resource and truly made my life a lot easier than dealing with the pool store. I am going BBB from now on and no more pucks!!!