I have gained great knowledge from the site in my first year as a pool owner. The info has been priceless. I have a fiberglass pool and had not added Calcium Hardness to my pool as of yet. I decided to purchase some at Leslies the other day and am ready to put into the water. The reason was that the debate seems unclear on whether to add or not to a fiberglass pool. Not sure what to do. I am leaning on putting it in as a just in case measure. Guidance?
If I do put it in how is the best way to add to the pool water? Pantyhose like CYA? Skimmer? Over return? How long does it take to dissolve and show in tests? Is it safe to swim right after the addition of the CH?