The manufacturers instrustions said to split the recommended amount by 4 hours. The first half, for the most part, has surprisingly disolved; so I put the other half in. The application should raise CYA to 30ppm, and since I'm at 0 I figured I should be good at that. I am hoping to take a sample to the pool store tonight to make sure the pool is ready for a shock.

I do not have well water, just really bad tap water. Sometimes when I fill my bathtub with water it comes out a brownish orange color.

What really surprises me, in-retrospect, is that the water was greenish-brown without any chlorine present. From my readings the water doesn't change color until chlorine is introduced to the metals.

I used Metalfree by Natural Chemistry, (I'm sorry I can't find the bottle) which did not help. I emailed the manufacturer and they said that Metalfree would not work with trace metals or copper, but that I should use their Stainfree to get out heavy metals and iron. Before I got that response I purchased Liquid Magnet, manufactured by a local pool chain, they do not list their ingredients. This turned the water from dark green (but still translucent) to a light green. I did a second application of the liquid magnet about 4 days later but the color did not change at all. Metal testing resulted in a 0.10ppm reading.

The algeacide I used was black algaecide treatment, which I clearly do not have but since I knew even less than I do now I purchased it, according to the pool stores recommendation. (I hate those places!) I don't know what was in that because I gave it away, disgusted.

I have no idea what is causing this green color. The walls are not slimy and I don't see any algae. Please help!