Muriatic Acid - Swimming Pool pH Reducer Balancer - 1 Gallon

Works well for balancing pool water

I live in the mountains and the water is very hard and leaves stains on everything. I have tried so many different products which didn’t work. I used this in my toilet and bathtub and they look brand new.

This is the product that our pool company recommends for our pool. They seem to like it.

Its a good product

My husband says it's very effective and works well. The price is high! I always buy items for my pool on Amazon, so I didn't search for comparison prices. Recommend 4*

Too expansive. Leslie's store sells the same product 3 times less expensive. I bought pack of two for $20 at thire store.

Magic Acid is suppose to be 31% muriatic acid level with some additives that make it less caustic. This should be deluted based on what ever job you want to do, full strength can potentially damage things, I know just the fumes rust out a skew driver I use to remove the film that covers the top opening not even making contact with the acid itself unless you wash it off. This is much safer to work with than regular muriatic acid and does cost more too, but this price is like 3 times what you can buy it for from any hardware or pool store! Besure to dilute acid before adding to your pool as instructed, acid is heavier than water and will etch your plaster over time, especially if you don't have a deep pool.P.S. Be sure to wait after a full nights recyle of water before testing again or you will find you used way to much acid because you tested to soon and added more! Also highly recommend using a Taylor regent test kit and do yourself a favor and get the awesome Taylor's Speedstir makes testing so easy!

We use this regularly and it’s always consistent