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Sams Club
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
stars135 ratings33 reviews
  1. 5 stars79% (106)
  2. 4 stars12% (16)
  3. 3 stars4% (5)
  4. 2 stars3% (4)
  5. 1 star3% (4)
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Showing 21-30 of 33 reviews
Apr 2, 2026
Sean G
5 out of 5 stars review

Verified Purchase

Great Tabs

Chlorine Tablets. Work just fine

Helpful?6RV9RIFQCOD015430857894
Apr 7, 2026
Penny
5 out of 5 stars review

Verified Purchase

Chlorine Tablets

This is a great price for the Chlorine tablets. We always buy them from Sam's Club

Helpful?6RV9RIFQCOD015430857894
Apr 2, 2026
Mwj
3 out of 5 stars review

Verified Purchase

Pool owner.

Overpriced , and does not perform to my expectations and what they say it will do

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Apr 15, 2026
Sheilas
5 out of 5 stars review

Verified Purchase

Good stuff

Very good

Helpful?6RV9RIFQCOD015430857894
Apr 8, 2026
Bugger
5 out of 5 stars review

Verified Purchase

?

Good price

Helpful?6RV9RIFQCOD015430857894
Apr 7, 2026
Jas
5 out of 5 stars review

Verified Purchase

Good price

Best price in town

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Apr 14, 2026
Mike r
5 out of 5 stars review

Verified Purchase

Summer fun!

Great bargain!

Helpful?6RV9RIFQCOD015430857894
Mar 5, 2026
NG
5 out of 5 stars review

Verified Purchase

Great!

Works really great!

Helpful?6RV9RIFQCOD015430857894
Feb 21, 2026
Mjk
5 out of 5 stars review

Verified Purchase

goodprice

works great

Helpful?6RV9RIFQCOD015430857894
Apr 15, 2026
anonymous
1 out of 5 stars review

Use caution causes chlorine lock

These chlorine tablets contain trichloro-s-traizinetrione which increases your cyanuric acid which can cause chlorine “lock” and it's unsafe to swim in when levels are high. I've had to drain my pool half way to lower the number and had to go to a different type of chlorine tablet.

Helpful?6RV9RIFQCOD015430857894