Will this work?

[HOF-City]

WOW! Pools are crazy. Haha. So I

• took out all chlorine tabs I had in the skimmer,
• added Cal Hypo through it for a couple days and
• pool got to be cloud free.

I can see the entire bottom and am super happy. The water still has a green tint to it, so I decided to put some Natural Chemistry brand "Stain Free" that was laying around in a sock to rub on my stairs. Stairs instantly became bright white!! Tried the same method on a corner of my pool liner and floor and they also cleaned up like brand new! When I look at that corner, the water appears crystal clear. So, the stained liner seems to be making my water appear green. My question is, can I use this product as recommended and follow it up with "Metal Free", or should I do something else to clean my liner? Also, the "Stain Free" that I found seems to be pretty old and I feel like I read somewhere on these boards that it is not the same as it used to be formula wise if I buy it new today. Thanks!!