Definitely, try Vit. C and Iron Out on them.
You may want to look at this post I just made:
http://www.poolforum.com/pf2/showthr...778#post118778
Definitely, try Vit. C and Iron Out on them.
You may want to look at this post I just made:
http://www.poolforum.com/pf2/showthr...778#post118778
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