Focus Stain Off is used to remove rust stains or calcium deposits from pool surfaces. It may be broadcast directly into the pool with pump and filter off or if stain is in a specific area may be poured through a length of PVC pipe directly onto spot.
Active Constituent: Citric Acid Anhydrous. 1kg Pack
Benefits
1.Easily removes rust stains and calcium deposits.
2.Fast acting.
3.Can be applied directly to area.
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