I am new to TFP, and new to pool ownership. My info is listed in my signature. A friend of mine who helped me clean up my filter and install my new pump when we got a new liner installed this year, has told me to use 3" tabs in the skimmer and shock once a week. My LPS said NOT to use pucks in the skimmer, and tried to sell me a floater. The paper work for my new liner say DON'T use a floater as it can bleach the liner where it sits. After reading Pool School (and many other websites), I really don't want to to use Trichlor or Dichlor at all. It seems counter productive to use a sanitizer that will eventually lead to having to drain half or all of the water just to start over again (as well as costs me money in water and quite frankly, seems a waste of water). I called my uncle who has owned a liner pool for over 20 years. His advice was to use granular chlorine (calcium hypochlorite). He said if you use between 12 oz to 16 oz (depending on water tests) every other day, and use around 2 lbs to shock every three weeks (or after heavy rain or a lots of swimmers) I should be fine. After reading many sites about the advantages and disadvantages of each type of chlorine, I don't really want to use liquid bleach, and I don't want to put something that will build up continually until I have to replace the water. My real question is does anyone else use this method? I don't mind the work of adding it every other day (10 minutes max is really not that much work!). He also recommended that I get in inline chlorinator for the pucks for times I may have to be away for more than a few days at a time. This way I have a backup system so I don't return to a green pool. (I have one coming in the mail already as I didn't want to use the skimmer or the floater before I read about CYA) I have added 6 pounds of CYA as the pool store recommended after I filled it with water for the first time. I need to get a better testing kit, as my strips only test FC, PH, and TA. All three have been "normal" so far this week.
Pool School has really helped me understand water chemistry and what each item does to the water as far as FC and CC. I am just looking for a good answer as to what I should use. I have been told by other pool owners not to worry about CYA, that draining at the end of the year and backflushing will clear it out enough each year. I am skeptical of that and am not comfortable with the idea of having to drain and fill again.