Okay thanks madwil and Carl, that makes sense, I had read about some owners really disliking their CL200's so that's why I asked. One other question about the feeder: The control goes from 0 (off) to 8 (full on), is there a suggested setting for my size pool or is it just something I need to experiment with ? And I'm guessing I need to try to maintain 2 to 3 tabs in it ?