What Can 3 chlorine tablets 40 lbs Do For Your Pool?

3 chlorine tablets 40 lbs are one of the most convenient, hands-free ways to sanitize your swimming pool. Unlike liquid chlorine or granular chlorine, chlorine tablets (also known as chlorine pucks) dissolve slowly over time.

In an ideal world, the pool season would end just as you use up the last 3 chlorine tablets 40 lbs, pour in your last bags of pool shock, and perfectly adjust your water balance with the last scoops from the bucket.

However, one look inside any pool owner’s chemical closet will tell you that leftover pool chemicals are the norm. So then, they lose efficacy over time? What needs to be taken care of the pool?

pH imbalance

chlorine tablets can lower the pH of pool water over time due to their acidic nature. It’s important to regularly test and balance the pH levels in your pool to maintain a safe and comfortable swimming environment. A low pH can indeed lead to various issues such as skin and eye irritation, damage to pool surfaces and equipment, as well as reduced effectiveness of chlorine sanitizers. Ideally, maintaining proper chlorine levels between 2-4 ppm helps ensure effective sanitization without causing excessive acidity or skin irritation. 

Calcium Hardness

If you’re out of the pool plaster or tile grout. Soft water with low calcium hardness is also prone to foam and cloudiness and can damage soft, shiny surfaces such as pool liners. Add a dose of calcium booster to increase the hardness level to 200 ppm. if your calcium hardness level is too high, over 400 ppm, you can reduce the hardness level (soften the water) by diluting (adding soft water).

To learn How to use chlorine tablets to disinfect the swimming pool, read this article: How to use chlorine tablets to disinfect the swimming pool


Also called conditioning agents, they are one of the most important pool-opening chemicals. Stabilizer chemicals use cyanuric acid to protect chlorine from sunlight. It doesn’t have much to do with water balance, but if the chlorine level in the water doesn’t fall below 30 ppm, the summer sun will consume your chlorine faster than you can add it to your pool! Add stabilizers as needed to maintain 30-50 ppm levels.

3 chlorine tablets 40 lbs

As many pool owners know, chlorine is an oxidizing disinfectant. When chlorine is added to pool water, it immediately zeroes in on contaminants and neutralizes them through oxidation. In the process, chlorine molecules penetrate the contaminants and strip away electron particles, which break down the contaminants. From the moment you open your pool until you close it, you need to keep the chlorine level in your pool constant.

Ideal chlorine content

Pool: 2.0-4.0 ppm

Spa: 2.0-5.0 ppm

Advantages of chlorine tablets

1. Compatibility with cyanuric acid (stabilizer/regulator) prevents UV evaporation.

2. Faster disinfection of water.

3. It is both an oxidizer and disinfectant.

4. It is easier to raise or lower the level quickly.

Some Tips

If you’re a pool owner with a larger pool of over 5,000 gallons, you’ll want to use 3-inch chlorine tablets.

Most pool chemicals have a shelf life of 3-5 years when stored properly:

· Consistent and cool temperatures, in a dry and dark location.

· Tight bucket lids and bottle caps, and sealed inner bags to lock out moisture and contaminants.

· Granular Chlorine can dissolve packaging, and repack for long-term storage.

· Keep all pool chemicals out of reach of children.

3 chlorine tablets 40 lbs

How to Add 3 chlorine tablets 40 lbs to Your Pool

There are three common ways to use pool tablets: using an automatic chlorinator, inside a floating dispenser, or placed in your skimmer basket. Remember that other things like your pool water temperature and water pressure can impact the amount of time it takes your tablet to dissolve.

And a larger, 3-inch tablet will break down more slowly than a 1-inch tablet. We recommend using an automatic chlorinator or a floater for your 3 chlorine tablets 40 lbs.

Armed with these you can ensure your family enjoys a sanitized, sparkling, and safe pool this summer!

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