Actually, it looks like adding a 2nd dose of bleach may well take you where you want to go.

There's enough variation in your test results, so that I don't really want to make recommendations beyond that. So just stick with the chlorine, till things are cleared up. Do NOT let the chlorine stay low -- if you can purchase enough bleach for a third dose, do so. Just put it in a cool place so it will 'keep' till you are ready to use it.

Post again when you've got more results.

PoolDoc