What do you do when your pool is green and you did all the stuff the pool placetold you to do

we have a above ground pool and its green because the people who owned the house before didnt put the right cover on the pool so the is green and we did everthing the pool place said!?!?!
Asked Jun 12, 2010
you already used chlorine?
Answered Jun 13, 2010
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Answered Mar 17, 2014

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