Jack's Magic Iron Cobalt Spot Etching Stuff 900g

The Jack's Magic Iron Cobalt Spot Etching Stuff -- 900g (JMS01001) is a 900-gram specialized pool surface treatment for removing iron and cobalt stains from plaster and concrete pool surfaces using a targeted spot-etching technique. Iron stains appear as rust-brown discoloration; cobalt stains as dark blue-black spots. The spot etching method treats the stained area directly without affecting the rest of the pool. Professional application recommended for best results.

SKU: JMS01001