Hello new user here

[jhiswin]

I have a pool with high alkalinity (currently 150, was 170), high chlorine (currently 10), normal Ph (7.4). I used a test strip w/ electronic reader.
I want to try the stain removal stickied in the stain forum, but I can't lower the chlorine level so that I can use ascorbic acid. Should I just live with the stains?
I am pretty sure they are metallic, as I left a vitamin C tablet in the pool overnight and it appeared to lift the stains.

Also, I was IP banned on another account called jhjhjh w/ IP *-*-*-* (static). I used a temporary e-mail, because I wasn't sure of the safety of using this website, or if my information (such as e-mail or location) would be picked up by e-mail harvesters. I was also slightly suspicious you guys might just be marketers. Sorry.
I don't know why I was banned. Was it because of the temporary e-mail or was it something in what I posted?
Could you remove the ban please? I promise not to do whatever it is I did.