I have an Aquarite system in my 20k pool/spa combo that works quite well. It has it's issues, such as a Ph level that rises faster than I believe a standard pool does, and also a whitish deposit that appears in the grout at the waterline that is impervious to all attempts at removal (but dissapears when wet) but overall I would never ever go back. However towards the end of the season I noticed that my CYA levels had dropped to below 30ppm from the 50-60ppm 6 months before. Now I know in theory this shouldn't be possible but, I'm telling you the honest truth, that CYA do gradually go down in my pool at a rate that cannot be explained by splashout alone. Anyhow I decided to shut down the salt cell and start using tabs just long enough to get the CYA back up to the 70-80ppm range. By adding 2 tabs per week I can easily maintain around 4ppm FC. I figured it this way because it would extend the life of the cell by having it "rest" for a few months in the winter and also if I'm going to be adding stabilizer why not chlorinate at the same time, killing 2 birds, rather than spend money on just CYA? As a side benefit, the pH does not rise as quickly, both from the tabs inherently low ph and the fact that the SWG is off, so for now I use a little less acid to control ph and less baking soda to control dropping TA. I get the tabs cheap through a pool guy I know, so I'm not so against tabs as I used to be. They deffinately have their uses. I figure that CYA will be right within the next couple of months and then it's back to the Aquarite. Now the big question is how is CYA being consumed (albeit slowly) in my pool, in contradiction to everything I've read on the subject?