I have about a 1/4 acre pond, with a limestone block wall along one side, and pvc liner oround the rest, liner covered w/pea gravel. I started filling it last week, it's 3-4 foot deep now. It was clear to the bottom before a cold front came thru, with about 2 inches of rain overnight. Now the water is a milky green color, I'm suspecting some mineral is causing it. It's not an algae color green, more of a pastel green, with visibility of 1 foot. We have caliche and limestone, and I've also heard that copperas can cause a green cloudiness.
Where should I start to try and clarify the water? It has no fish at present, just a swimming hole for the family, but I'd really like to keep the water clear as possible. I use some chlorine in it, and plan to put in a floating fountain for aeration. Any advice would be appreciated.