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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 781-790 of 807 reviews
May 19, 2023
Just me
2 out of 5 stars review

No stabilizer in these

NOT STABILIZED!

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Sep 5, 2017
sccatech
3 out of 5 stars review

Don't leave it in the weather outside!

I have no place to store this inside (machine shop in garage, wooden cabinet rotted, rusted the hinges and springs on the Sam's plastic storage locker). Harvey dumped 36 inches of rain and filled up the bucket with water which came in through the ratchet lock. Other brands do not have this problem, the lids are sealed. I had to get a gas mask on to open the container. The bags all had water in them.

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Apr 27, 2016
TonkHobie
1 out of 5 stars review

Worthless

For my Spring start up, I placed the usual number of tabs in my dispenser plus threw granules directly into the pool. The chlorine level in my pool remained undetectable no matter how high I turned the dispenser up. I did have 2 tabs left over from what I had bought last year (PoolBrand, from Sam's) and threw them in my dispenser. Within hours, the chlorine level shot up. The new Member's Mark tabs are worthless. Thankfully, Sam's has such an easy return policy.

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May 27, 2023
Kat
2 out of 5 stars review

Packaging pain

Chlorine is chlorine, right?... all pretty much the same. Nicely priced compared to pool store. My gripe here is the each individual tab is packaged. Why?? Not only is it a pain at the pool with wet hands and no scissors handy, but do we really need to add more plastic waste to the world? Do better Sam's.

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Jun 20, 2021
stephchern
1 out of 5 stars review

These Tabs are Terrible

I wish I could get my money back. I have never had so much trouble maintaining a chlorine level in my pool until using these tabs. It’s my terrible luck that I’d try them during a year when there is a chlorine shortage!! I’m actually mad about this!!

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Jun 16, 2016
rajak
1 out of 5 stars review

Definitely would not recommend this product

I bought this and we had nothing but problems with with our pool. Never could get any chlorine to register. Worked and worked, many trips to for water analysis at pool store. More shock (don't get that at Sams either) and finally, we had had enough. Drained the pool, refilled and used another brand of chlorine and presto, everything is good. Not sure what is wrong with this stuff, but is horrible chlorine.

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Jul 19, 2025
CaseyW
3 out of 5 stars review

Good but not so Good

This has been a great product for us for 7 years and have noticed how the price has stayed the same but the product went from 50 to 40 lbs and Sams and other companies thinks the consumer is not paying attention. Thats is why i have shopped this product at other online stores for same or lower price with delivery.

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Sep 2, 2015
Prunella
1 out of 5 stars review

Chemical problem

I bought a tub of these last year. Excellent. So I bought another tub this year and have been using them regularly. I started getting a rash all over my body. I didn't think it was the chlorine - I thought it was my bathing suit or that I had been using an inner tube and thought it was the friction of my kicking my legs. Hard to explain. So, I started switching suits, using vaseline on my legs, bought some 'slide' that pros use to prevent chafing. Nothing was working. The itch and sting were horrible. Then I got my dog to finally swim with me. Since he went in, he's been licking his legs, scratching and is acting like I did. I think something wrong with this tub of chlorine. I wish I would have stopped using it ages ago. A whole summer of miserable times in the pool.

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Jun 26, 2015
1stankindug
2 out of 5 stars review

you get what you pay for, and this is not what you want. These tabs plus their brand shock locked up my pool chemistry. had to drain most of the water, refill and used shock and tabs purchased from a pool supplier. yes it does cost more on the front end but less in the end.

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Aug 1, 2023
Joe
3 out of 5 stars review

Bucket lid

Come on Sams club,it took me 45 minutes just to get the lid off the bucket! What engineer designed that lid!?

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