I'll have Ben comment on this, but if you read through some of the threads in the Bacquacil conversion forum, almost all of them just used plain, generic, unscented ultra bleach. The pool is liable to turn all sorts of shades of weird colors, but you just have to keep putting the bleach to it until you're able to hold a chlorine level overnight in order to burn all the stuff off. Then a filter change, and you're ready to go--with MUCH less expense, time, and aggravation!!
You DO need a good test kit to make this conversion the easiest--you need one that will measure high levels of chlorine, and will accurately measure combined chlorine. We highly recommend the K-2006 testkit linked in my sig, but at the very least you need the K-1515 that will perform the needed chlorine measurements for you.
Welcome to the forum!!
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