(STAIN SOLUTION #1) is a non-acidic product for removing iron, cobalt, and spot-etching stains from all types of pool surfaces without draining the pool. The Iron, Cobalt & Spot Etching Stuff will normally remove these stains easily and effectively within 48 hours, with minimal rebalancing of other pool chemical products.
2 lbs per 12,000 gallons
NOTE: The use of a sequestrant is required to filter out the stain.
Try our Magenta Stuff, Pink Stuff, Blue Stuff, or Purple Stuff