pcasey61,

I have a list of questions for you and please don't be offended by any of them. I just want to try and figure out what is different from before. Of course, the problem could just be with the new liner itself. With our opaque safety cover, it started to wear through in one area after only 2 years even though it has a 7 year warranty. The warranty pays full replacement cost up to 3 years so we had it replaced last year and the new one seems much more supple than the first one (even during its first year). The installer said that they sometimes get a bad cover but most last longer (usually 5-9 years -- hence the 7-year warranty).

What was your source of chlorine before you switched to BBB? I believe from your previous posts that you put chlorine pucks in the skimmer, is that right? I assume these were Trichlor, but were they BioGuard Smart Sticks designed to be put into the skimmer or were they regular Trichlor pucks? Was the pump running 24/7 and if not, for how long each day?

In this thread of yours last year on June 19th, you wanted to switch to BBB and you found your chlorine level at zero and was eating right through the pucks. You also got no reading on pH (I don't understand that) and that the pool store said your pH was well below 7 and that the Alkalinity was 0. Was this situation AFTER you got your new liner? If so, then the very low pH was most likely the cause of the problem this year.

How have you been adding your chlorine (bleach?) to your pool? Is the pump running when you add the chlorine? Do you add it slowly over a return or into the skimmer or distribute it around the pool? Did the vinyl tear occur in the area where you regularly pour chlorine (if you pour it in the same spot each time) or did it occur on the sunny side of the pool?

Richard