The Blue Stuff (1 qt) (2 Pack)

this is just as effective as Pristine Clean at removing copper stains, and keep the copper suspended in the water (and not stuck to fiberglass pool surface). And its less expensive.

Works. Great

Supposed to take out stains had some fertilizer stains in the pool and it did no good. Maybe for other stains it's great I don't know but for what I needed it for did not work. Fertilizer stains are bad though.

Love this stuff! Been using in my gunite pool forever. Really makes the plaster sparkle.

I never write reviews, but this stuff worked so well and made me so happy that I HAD to! I had a lot of huge yellow stains on the bottom of my pool and on my steps that turned out to be iron stains. I scrubbed and scrubbed and scrubbed and no matter what I tried would not get them out. I read a lot of reviews and did a lot of googling and that’s when I came across this stuff. I figured at this point I had nothing to lose and ordered two bottles. When it came, I read it and it said to put one bottle per 10,000 gallons so I put both bottles in around 7pm and left my filter running. Next morning the stains had lightened a little and I just went off to work… when I got home all the stains were completely gone!! I will be buying more of this and using as a regular in my pool. Thank you so much jacks magic! Before and after pictures to show the difference, don’t mind I have some dirt I need to vacuum.

For $30 a bottle, this was a ripoff! After the water was balanced, I put both bottles in my 18,000 gallons pool and it didn't get rid of even the smallest stains. I'm a little upset about it, mainly because of the price.

Occasionally things happen in the pool. Different stains on white steps, dark spots in the pool. My pool attendant suggested that I try this product for stained white steps when I opened the pool. Scrubbing did very little good. I bought 2 bottles, (1 for every 10,000 gallons in the pool). I turned the pump off and poured 1/2 of one bottle around the edge of the steps. Product just settled and dispersed over the steps. Came back the next morning and the steps were white as snow again! Jack’s Magic does just that Magic! Highly recommend for freshening up you pool surfaces.

I polluted our pool by using an algaecide that contained copper so I’ve been battling all winter trying to get our water cleared up. I added this an out a week ago and kept up the brushing and vacuuming and my water is clear again and greatly reduced the scale!! Highly recommend!

Amazing customer service ! Just amazing! Thanks Kathi