We just had a 30' round pool installed this week. We had a mineral pack ( frog) attached to our package and turned it off. We went the the pool store, I know right, and they told us it was junk and that we should use bacquacil, because it is so much better. I started with the start up kit, but now am afraid I made a huge mistake. Please help. I know I should order the test kit too. Thanks in advance.