Water turned green after adding shock treatment

[waterbear]

test your water for copper....I will bet that is the culprit. Have you added any copper based algecides or are you using "dual action" trichlor tabs with copper?
A metal sequsterant will take care of the problem if your water tests positive for copper. Just follow the directions on the bottle. Jack's Magic Blue Stuff is excellent for copper, btw.

[NowhereMan]

Thanks for replying. I did add algecide when I initially opened the pool. I'll take a sample in to my pool store and have it tested for copper.

Thanks Again!

[waterbear]

If it tests postive for copper you will need a metal sequesterant.