Just recently cleaned and re-filled my spa. Added the product and after a few weeks the pH is at the perfect level. Will be keeping an eye on the pH level in my spa to see if it continues to stay where it should be, but so far, so good! *Sweepstakes*

I used this on previous water change and bought another one. I recommend it.

Turned cloudy instantly and it was nice and clear! Took me 2 days to clear it up and clean my new filter twice.

Followed instructions. Soon after fresh water turned cloudy, filter was covered in what felt like white lotion. May have to drain and refill again if filters can't remove it. Not worth the hassle!

Was trying to reorder PH Up and didn't see it. Bought this thinking it was what I needed. It's actually gor a startup procedure to help with water balance. Can't really rate it now do 3 stars is what I give it because I don't know how it will work.

So easy to use. I used to buy a similar product years ago & haven't been able to find it until now. Love it. Water feels so good.

This is my first time to use this product. So far I like it . Very simple to use , and my ph has stayed within good levels . I have not had to add any ph plus or minus

Use product in my hot tub

Our water starts with low hardness. Balance alk and pH and poured in bottle. Afterwards alk high and pH low which is a weird combo. Lowered hardness to way less than 50 ppm. Tried to lower alkalinity with pH down didn't seem to work. Tried to raise hardness since everything I read low hardness is bad. Turned the water to slimy milk when I added calcium hardness. Probably drain and start over. Bummer was I bought 3 bottles.

Works great. Stabilized my chemistry with first use.