You can use trichlor pucks but just be aware that they have CYA in them and will cause your CYA level to rise and rise and rise. Every outdoor pool needs some CYA or else the chlorine is quickly lost to the sun. The problem comes when the CYA level gets too high. Most people don't realize that the higher your CYA level is, the higher your chlorine level has to be to keep algae from getting started. Take a look at the chart at this link for the connection between CYA and chlorine:> http://pool9.net/cl-cya/
In addition, if you are going to use the tabs for an extended period and thus have high CYA and need high chlorine levels. you'll have to have a kit that can test it. The kits that you will be able to buy locally will only measure chlorine levels to 5ppm. However, the Taylor K2006 or 2006C (better buy) will allow you to test way higher than 5ppm. You won't find it locally but can order it through this link:> http://pool9.net/tk/
The tabs are acidic and will drive your pH down, so keep an eye on it and make sure you keep it above 7.0. (By the way, when your chlorine is above 5ppm (or above 10ppm with Taylor kits), you will get falsely high pH readings. So keep that in mind when you are testing. You can always dilute 50:50 with pool water and distilled water and then test pH normally with that mix if you need to.
Hope this helps. Welcome to the Pool Forum!
(Until you registration is completed, you won't be able to see the rest of the forum while you are logged in. So, copy that link and then paste it into a browser window after you log out.)
Bookmarks