Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for Member's Mark Plus+ Alkaline Bottled Water 1L., 18 pk. for
Member's Mark Plus+ Alkaline Bottled Water 1L., 18 pk.
4.8 out of 5 stars
stars
7,857 ratings1,494 reviews
  1. 5 stars90% (7,079)
  2. 4 stars7% (519)
  3. 3 stars2% (128)
  4. 2 stars0% (39)
  5. 1 star1% (92)

Member photos

  • +12 images
Sort by |
Showing 1-10 of 1,494 reviews
May 7, 2026
Reviewer name: Ellie M
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Lab and selective palette approved!

This is the best price around for electrolyte-flavored water! I drink it to help keep my electrolyte levels up, I can't drink most of the options on the market due to taste sensitivity. Since I started drinking this at home when possible, my labs have gotten so much better!

Helpful?61JQWEUZK2V713586574003
Feb 7, 2026
Reviewer name: CSP2
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Alkaline Water - Member's Mark

Sam's Club Alkaline (Ionized Hydration) Water is great quality for the price--compared to other waters. The price has remained low enough to be a very good value. It usually appears to be the only label of alkaline waters sold at Sam's Club that sells out first.

Helpful?61JQWEUZK2V713586574003
Feb 11, 2026
Reviewer name: Anne
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Husband loves it

My husband prefers alkaline water so I bought this for him to try. He told me it’s the BEST one he’s tried, loves the taste and because of the large bottle size, he finds himself drinking more water. It’s also really very well priced compared to other brands.

Helpful?61JQWEUZK2V713586574003
May 8, 2026
Reviewer name: Kent
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Alkaline Water on the go

Been. Drinking Alkaline water for 2 or 3 years now. Both price and quality seem very good. My wife and I were getting upset stomach's with any regular drinking water, but never with 9.5. No more indigestion with us.

Helpful?61JQWEUZK2V713586574003
Apr 1, 2026
Reviewer name: Chris J
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good product and value

Not only has the water made some noticeable benefits with a health condition of mine, but it's also a great value compared to national name brands. I will keep buying this.

Helpful?61JQWEUZK2V713586574003
Feb 22, 2026
Reviewer name: CaptScooby
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Bottled ph H2o

When you need to regulate the ph balance, it's easiest to just drink water.. better if it's already balanced water to help. I don't know anything about this stuff but it sure helps me in a pinch

Helpful?61JQWEUZK2V713586574003
Dec 31, 2025
Reviewer name: Sigmone
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great water for GI issues!

Love this water been drinking this brand for 3+ years now and the only bottled water I can tolerate cold or room temperature

Helpful?61JQWEUZK2V713586574003
Aug 29, 2025
Reviewer name: Mikey
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Definity Alkaline

I tried this when I couldn't handle anything acidic and even regular bottled water didn't help. I was surprised when I was feeling sick this water stayed in my system.

Helpful?61JQWEUZK2V713586574003
Aug 19, 2026
Reviewer name: Ask Grandpa
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Our Daily Go-To for Great Tasting Water at a Perfe

Living in Houston, our tap water is not the best, so our family goes through a lot of bottled water. We are very happy with this Sam's Club water. The price is absolutely perfect for buying in bulk, and the clean taste is excellent. It is our daily go-to.

Helpful?61JQWEUZK2V713586574003
Jun 21, 2026
Reviewer name: Julie
1 out of 5 stars
1 out of 5 stars review

I have been purchasing this water for several years. The bottles in my most recent purchase contain a white “pulp” floating in the bottle. I opened multiple bottles all containing; same substance. I don’t feel comfortable drinking this water any longer.

Helpful?61JQWEUZK2V713586574003