OK guys. I found the culator product on line for 19 bucks.

I may purchase but would like to know how to test my pool for the metals it says it removes. I have iron for sure because of my well situation. I know what my water has. It is treated but my iron is .7 ppm. I probably had breakthough of the softner when refilling my pool.

Do I just have a iron test done? Before and after? I guess The instruction would explain, but do I use a sequest agent first to get the iron to souluable form?

Since I am not a chemist I want to try and use my own pool for a test and let everone know the results. Just want to get some test parameters that may be somewhat accurate.