Western PA, Roxanii here :)

Aug 1, 2015
2
new castle, pa
Hello,

My Grandmother has been having trouble with her pool for years and I'm finally able to spend enough time here to (hopefully) help. It's over 30 years old and shes recently switched from a sand filter to a cartridge filter. I've gotten the water to stop being green, and it's cleared up a little but still very cloudy. Spent all day yesterday trying to get glass out of the pool, her glass table fell in and shattered.
Anyways, any help is good help. Thank you!
 
Welcome. I'd be very careful with that shattered glass in the pool. I would not brush it at all. You do not want to rip the liner.

If you do not own a recommended test kit, I suggest you look into the TF100 or the K2006 which I have linked in my signature.

PS... I'm also from SWPA.