I tested a couple bottles. Definitely more alkaline than tap water. Tastes good. I believe that the additives ( potassium hydroxide, and calcium/ magnesium chloride) are what make it alkaline.

We use to buy only smart water and we tried Members Mark Plus+ and found that it taste the same as the name brand. So we started saving some money and buying Members Mark.

I purchased the Essentia alkaline water with this one at the same time. I can not taste the difference between the two. It’s both ph 9.5+. But Member’s Mark is offered at HALF Price of Essentia!! A great substitute.

I like the water and the bottles. However three of the bottles were half full. Sealed but only half full. How does that happen? Not worth taking back but I will try and check them next time.

I have been purchasing this water for a long time and when I logged on to order more water it seems Sam's Club is no longer selling it. Every time I like something, it seems Sam's stops stocking or selling it.

We've been buying this water for years. However, we've noticed the last few months, the water is always tinted. If you put the bottle on a white piece of paper or hold it up to light, you can see the brown tint. Definitely doesn't seem safe.

Essentia is a great water, don't get me wrong, but it's expensive! I love this water because it goes down smooth and is so much more affordable than Essentia (half the price!).

I was purchasing from Dollar Tree and HEB in Texas. Those add up quick financially with each individual purchase and it wasn't enough for me. I am a heavy, heavy water drinker and when I saw these at Sam's with as many you get for the price, I snagged them and they are the best purchase I have ever made water wise. These taste wonderful, however they are whay they say. The PH is in fact 9.5 or higher and on an empty tummy it can make me a wee bit nauseous. As long as I eat before I drink, I'm okay. These are great. I got my mom on them too! :)

The water is exceptional in taste and I like the large amount. The issue is the bottle is so thin that when you go to unscrew the "Tamper Resistant Screw Top" the water goes all over the place. On me, my car and my floor. I get it....less plastic....I just don't like how its packaged and it such a mess to deal with! Over half of the case does this and I have been buying for awhile. Lately it has gotten worse!

Great product, however bottles could be updated. I had a pack freeze overnight in the back seat of my car. To my despair when they defrosted the bottles had split at the seams and bottom and leaked all over my car. DO NOT allow these to freeze otherwise you will have a mess and be disappointed. This is the first pack of water I’ve encountered that has done this…