I have a Fiberglass pool. I know I don't need to Calcium for it. But, before I found this site I bought a bunch of cal-hypo from Leslies. I don't shock the pool very often (maybe once every 6-8 weeks). But, from what I read here on the forum, too much Calcium can lead to cloudy water. So, how much is too much? I just ordered the Taylor Test reagents to do the test. I'd like to use of the cal-hypo, but don't want to reach a high numbers. What's a safe range before my water clarity is affected?