1. Don't give away the PhosFree. Instead, order a Hach / AquaCheck Phosphate Test Kit from Amazon. Once you get it, start adding PhosFree doses VIA THE SKIMMER every 2 - 3 days. Test your water a day AFTER adding the PhosFree. Keep going till you show no phosphates. Doing so will make it MUCH easier to get rid of the 'green'. (You can order the kit, and the tape measure at the same time. I'll post a diagram of what to measure, later today.)

2. If your first phosphate test shows levels above 1000 ppb (1.0 ppm), let me know.

3. Keep your chlorine around 10 ppm, till the 'green' is gone.

4. Otherwise, your chem levels look good.