Went threw three bottles for 25000 gallons and it was effective but not totally. Ordered three more bottles and still waiting on results
Jack's Magic The Blue Stuff is the most recommended start up product in the swimming pool industry for plaster pools. The Blue Stuff is very efficient at controlling plaster dust. The Blue Stuff's proprietary blend removes metals such as copper, iron, and manganese from the water. The Blue Stuff is very stable in high chlorine (even over 10 ppm) levels. The Blue Stuff prevents and removes stains and scale in plaster, vinyl, and fiberglass pools.
- Broad range preventative, highly effective in copper and heavy scale situations
- Extremely Chlorine tolerant
- One quart treats 10,000 gallons
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did not perform
I followed directions and still have the same stains in my pool. I will contact the manufacturer to find out what I possibly did wrong.