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  1. M

    Sodium dithionite - iron out

    The product Iron Out contains Sodium Dithionite (smaller amounts of Citrix acid and some ph stabilizers) The companies FAQ specifically says they don't recommend it for use in a pool although it can be used for iron stain removal in an empty pool Mostly curious but what would be the chemical...
  2. M

    Brown Stains only on PVC

    First post here, but I've looked over alot of the posts and can't find anything exactly like my problem so here goes I have brown stains on the PVC skimmer housing/baskets (see attached image) , filter basket and inside fitting in the pool, to a lesser degree the pvc on the polaris fittings and...