I own a 21,000 gallon older outdoor pool. When I first used two bottles of Jack's Magic the Blue Stuff, there was not much change but waiting a few more days showed the blue copper stains diminishing enough that I was very excited and pleased to know that I need to keep this product on hand in the future to use again and again. The finish on my pool is an Artesian 22 year old exclusive and is "etching" but it still looks pretty darn good good except for the metal stains. I cannot wait to order and use again in the near future!
Verified purchase: Yes | Condition: New
My pool service company had given up on my stains. Another pool guy suggested I try Jacks Magic. After going through the stain treatment process and continuing with the treatments, people ask me why my pool sparkles. I do not work for Jack's Magic, I just swear by it,
Verified purchase: Yes | Condition: New
The blue stuff works but my stains are extensive (20,000 gal). I would need at least 20 bottles.
Verified purchase: Yes | Condition: New
I have used this product in the past. This works to keep my pool and spa walls smooth. Without it, I seem to get a sandpaper like surface on the walls and seating areas.
Verified purchase: Yes | Condition: New
I have to use it on my blue tinted plaster walls.
Verified purchase: Yes | Condition: New
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