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Customer reviews for Member's Mark Chlorinating Granules, 40 lbs for
Member's Mark Chlorinating Granules, 40 lbs
4.7 out of 5 stars
stars
3,813 ratings807 reviews
  1. 5 stars86% (3,279)
  2. 4 stars8% (290)
  3. 3 stars3% (101)
  4. 2 stars1% (48)
  5. 1 star2% (95)
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Showing 121-130 of 807 reviews
Aug 2, 2025
George
5 out of 5 stars review

Verified Purchase

Chlorine

Great product.

Helpful?30FFO4C17W7N15359760490
Sep 14, 2025
Cp
5 out of 5 stars review

Verified Purchase

Good value

Great price

Helpful?30FFO4C17W7N15359760490
Oct 5, 2025
karen
5 out of 5 stars review

Verified Purchase

great product

great value

Helpful?30FFO4C17W7N15359760490
Jun 8, 2026
Deborah
2 out of 5 stars review

Raises CYA!!

This product raised the cya level so high in our pool that we had to drain it. Switched to a different product and ended the problem.

Helpful?30FFO4C17W7N15359760490
May 9, 2021
RB
5 out of 5 stars review

Verified Purchase

So easy to shop online.

Ease of ordering.

Helpful?30FFO4C17W7N15359760490
Mar 19, 2024
Dale
5 out of 5 stars review

Verified Purchase

Chlorine

Good price for 40#

Helpful?30FFO4C17W7N15359760490
May 31, 2023
Mrs Pool Guy
5 out of 5 stars review

Verified Purchase

Individually wrapped! No smelly container!

Best price, too.

Helpful?30FFO4C17W7N15359760490
Apr 21, 2024
Lori mn
5 out of 5 stars review

Verified Purchase

Efficient pool chlorine

Best price around

Helpful?30FFO4C17W7N15359760490
Jun 26, 2016
WarrenS
4 out of 5 stars review

These have worked for me for several years.

I've been using these for several years with no problems. I live in Arizona and have an in-ground "play pool" that I guess to be about 18,000 gal. I put two tabs each into two floats, total 4 tabs, each week. That seems to keep the chlorine right where it needs to be. No significant chemistry problems attributable to these tabs.

Helpful?30FFO4C17W7N15359760490
Jun 25, 2021
Jmk
1 out of 5 stars review

Verified Purchase

Do not buy

Putting chlorine tabs in packages is the worst thing to do! Not only is chlorine already strong but I want to be able to put them in my skimmers right away not sit there and about die just to cut the bags to get the tabs out. This is the worst ever! No other chlorine tubs I’ve bought like name brand or store brand ever been packaged.

Helpful?30FFO4C17W7N15359760490