Purchased this again from Sam’s for the 2026 season. I bought it last year and I love how they came individually wrapped and in a big bucket. I saw a review that theirs were broken but my tablets are in perfect shape. I also like that they are 99% chlorine! Buying the big bucket will last me all season and works out much less expensive than buying anywhere else.

This is Barnie. He holds our chlorine tablets and floats around to keep our pool clean. Currently Barnie is very hungry. As you can see he is floating. He will be fed 3 chlorine tablets today. All joking aside, we like buying the large bucket. It lasts, and is very convenient. The Sam's club brand works just as well as the name brand

This pool tables are working really well! After putting it in the pool, the water quality becomes clear and clean, without any strong chemicals smell. It’s very easy to use, and the sanitizing effect is noticeable. The water looks crystal clear. It’s also great value for money, I will definitely repurchase!

I've used these tablets in my in-ground pool for several years and they work great! They are also the cheapest I've found chlorine tabs in the past couple of years.

A truly excellent shopping experience—the logistics were smooth, and I am very satisfied with the product. We have been using these chlorine tablets consistently; they are highly effective at keeping our pool water crystal clear. Highly recommended!

This is the first purchase I have made of these Tabs, You can't beat the price ,and forty lbs of tabs is really super saving money. I have only used them for about 3 weeks, but they are working great if not better the Tabs I have purchased thru other stores.

Members Mark chlorinating tablets are the only ones we use in our pool. They are just as effective as any other brand that we have used to help keep the pool clean and they are much cheaper than any other place that sells them. If you have ever tried to lift this size container of chlorinating tablets, you know how heavy they are. Sam’s delivers it for free!! You don’t have to put it in your cart at the store or lift it out to put it in your vehicle, only to take it out when you get home. This is a huge bonus!!

No complaints about how these tablets perform—my pool stays clear, and the price is solid. But the last couple of buckets have been a whole different experience. So many broken tablets, and every time I open one of those individually wrapped “gifts,” I get a face full of chlorine powder. I’ve literally had to start wearing a mask just to open them. Not exactly what I expected from a bucket of pool supplies. Still worth it for the results, but seriously… can we get less of the airborne drama?

The chlorine tablets are a quality product, however, customers should note that although the price has come down, so has the size. What used to be a 50lb bucket of chlorine tablets is now 40lbs.

I drain my pool 2 months ago because of high cyanuric acid. I noticed the pool was still getting algae so I went to do a test at Leslie’s pool and they informed me that cyanuric acid was too high again. So I did a little research and found out that it was this shock that I been using. This is the worse shock I ever used. Never again!! I have to drain my pool again because of this!