Name: Member's Mark Chlorinating Granules, 40 lbs
Brand: Member's Mark
SKU: 15359760490
Availability: InStock
Rating: 4.7 (4152 reviews)

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Limited time! Get a $50 statement credit when you open an account & use it to make $30 in eligible Sam’s Club purchases within 30 days.¹

¹Offer subject to credit approval. During the offer period, new accounts that qualify will earn a $50 statement credit instead of a $30 statement credit that you may see otherwise advertised. To qualify, you must (i) apply and be approved for a Sam’s Club credit card account between May 14–June 3, 2026 and (ii) use your new account to make Sam’s Club purchases totaling $30 or more (excluding cash advances, gift card sales, alcohol, tobacco and pharmacy purchases) within 30 days of date of account opening. When you open an account online or with your mobile device, purchases cannot be made at in-club registers until the physical card is received. Your physical card should arrive in 7–10 business days from date of account opening. A $50 credit will post to the account within 90 days after the qualifying purchases are made. Offer is valid for newly opened accounts only and each account is eligible for only one $50 offer, in lieu of, and not in addition to, any advertised $30 offer.

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Member's Mark Chlorinating Granules, 40 lbs

Instructions

<summary>
<ul>
<li><strong>Comprehensive Care</strong>: Offers a three-in-one solution for pool maintenance, acting as a sanitizer, algaecide, and shock. It also reduces pH levels and eliminates chlorine odor for an improved swimming experience.</li>
<li><strong>Pure Formula</strong>: Features a high-quality, filler-free composition, ensuring each granule delivers necessary ingredients without leaving unwanted residue, promoting a clean and fresh pool.</li>
<li><strong>Wide Application</strong>: Compatible with most swimming pools, spas, and hot tubs, this product provides versatile and efficient maintenance for various water systems.</li>
<li><strong>Direct Potency</strong>: Designed for direct application, it raises the free available chlorine level to 5-6 ppm (mg/L) in circulating water, ensuring effective sanitation.</li>
<li><strong>Important Warning</strong>: This product is corrosive, causing irreversible eye damage and skin burns. It is harmful if swallowed and must be kept out of reach of children.</li>
</ul>
</summary>

<h3>Three-in-One Pool Maintenance Solution</h3> <p>Keep your pool in top-notch condition with Member's Mark® Chlorinating Granules. This versatile product serves as a sanitizer, algaecide, and shock, offering a comprehensive solution for your pool maintenance needs. It effectively reduces pH levels and eliminates chlorine odor, providing a more enjoyable swimming experience.</p> <h3>High-Quality, Filler-Free Formula</h3> <p>Unlike other pool maintenance products, Member's Mark Chlorinating Granules are entirely filler-free. This means that every granule is packed with the necessary ingredients to keep your pool clean and fresh, without leaving any unwanted residue behind. Enjoy the peace of mind that comes with a clean, clear pool.</p> <h3>Compatible with Most Pools and Spas</h3> <p>Whether you have a pool or a spa, Member's Mark Chlorinating Granules are designed to be compatible with most types. This makes it an excellent choice for various pool and spa owners, bringing convenience and efficiency to your routine pool maintenance.</p>

Brand

Product Net Content UOM

<ul>  <li>Member's Mark™ Chlorinating Granules - Step 2</li>  <li>Ideal for use in swimming pools, spas, and hot tubs</li>  <li>Direct application to circulating water raises free available chlorine level to 5-6 ppm (mg/L)</li>  <li>Warning: Corrosive. Causes irreversible eye damage and skin burns. Harmful if swallowed. Keep out of reach of children</li> </ul>

Specifications

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Instant Savings

<ul>
<li>Member's Mark™ Chlorinating Granules - Step 2</li>
<li>Ideal for use in swimming pools, spas, and hot tubs</li>
<li>Direct application to circulating water raises free available chlorine level to 5-6 ppm (mg/L)</li>
<li>Warning: Corrosive. Causes irreversible eye damage and skin burns. Harmful if swallowed. Keep out of reach of children</li>
</ul>

Better price!  Chlorine has gotten so expensive.  There is no real reason for that now the plants are up and running.  Sam's club needs to sell it at 79.99 regular price.

lower the regular price.

I have been using this product for years, it keeps my pool's balanced and clean with less maintenance. However, what I'm only disappointed is the cost which doubled in the past three years, the inflation made me sick !!! Hope the price is brought down soon.

Good product but too costly

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

We like being able to buy the big bucket

Chlorine Shortage -  bought one 40 pound container of tablets online last week. Free shipping and chlorine arrived early.  And, then went to local Sam’s Club to purchase two additional 40 pound containers this week.  Sam’s Club 40 pounds is at a phenomenal price when other merchants / pool supply companies are charging twice as much (or more!) for the same product.

Chlorine Shortage

Since purchasing our pool, I have been purchasing the 1 pound packs of shock from an online retailer. I’ve been putting one or two of those in each time that I treat the pool. This year, I was not able to get that delivered so I purchased this product from Sam’s Club. I was amazed to find out that just 4 ounces covers a 10,000 gallon pool. That means this product is much cheaper than the 1 pound bags I was purchasing because of its concentration. The pool has been very clear since I began using this. I am so thankful for shortages and inconveniences.

Loving this product better than others I have used

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?

Love a Good Bargain… Hate the Chlorine Smoke Bombs

These have more than doubled in price. I realize the supply shortage and demand during the pandemic raised the price but the supply should be stable now and I feel it is greed either on the manufacturer or retailer or both that keeps the price so high. That’s the main reason for the inflation of many products. Just because they can!! The product is fine but the COST is NOT!

Bring the price down

Last purchase was 50lb.  Container now 40 lb, yet price about the same.

Shrinkage

Another excellent example of Sam's Club pricing that  diminishes the cost of membership. Price is exactly the same at other pool supply outlets.  Most pool company technicians do not like the individually wrapped tablets so I had to return for a refund.

Not worth it!

Great product, but way too expensive.  Used to be $90 and now it’s $200.  I heard there was a major chlorine tab supplier that burned down, but that was a few years ago, so don’t understand why the price has not come down

Member's Mark Chlorinating Granules, 40 lbs

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