For years, we struggled with balancing our pool water. We'd take a sample to the pool store and they'd sell me several buckets/containers of different supplies to clear it up...big time and big money!!
Thanks to my cousin, we now just use Vertex. Pure liquid chlorine. Approx $15 for a case of four jugs (lasts more than a month). We use test strips to make certain that the chlorine levels are safe, but other than that....we relax, save money, and get to enjoy beautiful water! If the pH get off, you can use baking soda (from the pool isle) to level. Thank You Vertex!!