ttfn,
Generally it's better to start a new thread but since you're problem seems similar to the original posters problem, fine. We really need some info to be able to help.
Specifically: Free & combined chlorine, pH, TA--Total Alkalinity, CH--Calcium Hardness, and CYA--Cyanuric acid. Also some info on your pool like the type... liner, gunite, etc, pump and filter type and sizes or model numbers. Anything else that may help, even if you don't think it significant. On the chemistry you can take a sample to a reputible pool store for testing, just don't tell them anything and don't buy anything.
Chlorine is chlorine no matter what the source. Metal parts disintegrating after 6 weeks??? No way. Something is drastically wrong. Can't comment on Aquaclear as I know nothing...seriously.
Al