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Customer reviews for Member's Mark 3" Chlorinating Tablets, 40 lbs. for
Member's Mark 3" Chlorinating Tablets, 40 lbs.
4.6 out of 5 stars
stars
560 ratings275 reviews
  1. 5 stars80% (447)
  2. 4 stars9% (53)
  3. 3 stars4% (21)
  4. 2 stars3% (17)
  5. 1 star4% (22)

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Showing 101-110 of 275 reviews
Jul 28, 2026
Reviewer name: Lori
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Chlorinating tablets

Great value

Helpful?6RV9RIFQCOD015430857894
May 28, 2021
Reviewer name: Michael
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

product as described and dissolves nice and slow

Each piece is individually wrapped in clear plastic (wasteful for planet earth), the bucket is not air tight so garage smells some, but tablets are slow dissolving in pool floaty so far we have clear pool water for the kids safe summer fun

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May 27, 2021
Reviewer name: KenN
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Sam's Club Member's Mark Chlorine Good Price

This is still a great deal from Sam's even thought the price of chlorine has increased. The tablets are generally well packaged and last a good deal of time in my skimmers.

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Jul 3, 2021
Reviewer name: Jerry Page
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Found By Accident

This is by far the happiest purchase my wife and i have made in a while. We have been looking for chlorine tablets for months. We have purchased an above ground pool. Its supposed to be set UP in August. No more worries. Thanks again SAM'S

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Aug 14, 2018
Reviewer name: not happy
1 out of 5 stars
1 out of 5 stars review

Don’t Purchase These

These tablets have more stabilizer than the tablets you purchase from a pool supply store. They made my pool cloudy and increased the stabilizer so high that I had to drain half of my pool to get it back in balance.

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May 10, 2026
Reviewer name: anonymous
5 out of 5 stars
5 out of 5 stars review

Pool tablets

Order their pool tablets. They work the best out of all the tablets we use. Had them ordered %26 were delivered right away. Priced perfect. Love these pool tabs

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Jun 24, 2021
Reviewer name: Nick Abba
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good stuff and works well for & very affordable.

These are in a nice HDPE pail that seals nice and easy AND the tablets are individually wrapped to maintain potency and keep from absorbing moisture in the air. I've been using them for years. The large 40 pound amount will last me two seasons, but I share some with my son, who only needs about 10 pounds a year, so it's economical when buying the large quantity at once. Otherwise, it's twice the price

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Oct 30, 2019
Reviewer name: arthur
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Members Mark Chlorine Tablets Review

The Members Mark chlorine tables are of high quality. I have used them for 4 years. They are solid tales with out a lot of filers so when used do not dissolve in a day or 2. They last 4 or 5 days when placed in the skimmer baskets. They are the most inexpensive chlorine tables that I have used (MOST ECONOMICAL). Most pool supply stores charge $20 more for their tablets. I buy them at the club but to my chagrin they stopped carrying them this Fall. I had to order them online. I hope they will restock in the Spring.

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May 10, 2026
Reviewer name: Nick
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Chlorinating Tablets

very good product

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May 2, 2019
Reviewer name: LN
1 out of 5 stars
1 out of 5 stars review

Too much cyanuric acid in the tablets!!!!

I purchased these because I thought it was a great deal...well, I had to drain my pool by July because too much Cyanuric Acid (stabilizer) had built up. I will never buy these again, cost me so much more in the end, garbage chemicals!!! The chlorine content is much lower than other brands that may cost a little more!!

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