Sounds like things are comming along nicely You've got to know the pH, alk and hardness to be able to tell if calcium scale will form, if your kit is not strips and the reagents are fresh/ good, the Walmart kit is fine. Depending on the #s, you may be able to keep the calcium in suspension by running the pool at a pH of 7.2 - 7.4, or you may have to airate off some of the alk. Thanks for keeping us posted, the more we know about your pool, the more we can help.