I would not add the "super shock" packages--they are a blend of chlorine, CYA, and "mystery goop", as Ben and WAtermom like to call it. Add plain, unscented bleach.....but how much is going to depend on your CYA level. If you can give us a set of test results, taken with a drop-based kit (no strips!!), we can tell you what/how much to add.