Pool Chlorine

Buy pool chlorine online and save money with free shipping. Choose from a variety of pool chlorine and sanitizers to keep your pool ready for swimming. 

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Different types of chlorine for swimming pools

Pool Chlorine for a Clean, Clear Pool

EZ Pools offers fast-acting shocks and slow-dissolving tablets to keep your water safe and sparkling all season.

✔ Cal Hypo Shock – Powerful, unstabilized chlorine for weekly shocking & algae removal.

✔ Liquid Chlorine – Quick-dissolving, no stabilizer, perfect for easy sanitization.

✔ Dichlor Shock – Stabilized chlorine with built-in UV protection.

✔ Chlorine Tablets – Slow-dissolving, stabilized tablets for everyday use.

✔ Cal Hypo Tablets – Unstabilized tablets with high chlorine content.

Stock up on pool chlorine today and keep your water crystal clear with EZ Pools! 💦

Complete Protection Beyond Chlorine

Keeping your pool clean is about more than just chlorine—effective algae control and phosphate removal are key to long-term water clarity. EZ Pools offers powerful algaecides and phosphate removers to stop algae before it starts.

✔ Algaecides – Prevent and eliminate green, black, and mustard algae for a swim-ready pool.

✔ Phosphate Removers – Reduce phosphates, starving algae at the source for lasting protection.

Take your pool care to the next level with the right algae control solutions from EZ Pools! 💦

Algae control

Frequently Asked Questions about Pool Chlorine

With so many different chemicals on the market, effectively chlorinating your pool can get complex. Here are some answers to the most common pool chlorine questions we get.

How do I increase free chlorine in a pool?
To raise free chlorine levels, add a chlorine-based product such as liquid chlorine or a granular pool shock like Calcium Hypochlorite. If you have a floater or a automatic chlorinator, you can also use Chlorine Tablets. Ensure proper circulation and test your water to maintain a free chlorine level of 2-5 ppm.
How do I reduce chlorine levels in my pool?
If chlorine levels are too high, there are two main ways you can remedy this. You can use a chlorine neutralizer for quick results, which works by breaking down chlorine molecules in your pool water. You can also dilute the water by partially draining and refilling, or letting the chlorine burn off naturally from the Sun's UV rays, though this will take at least a few days. If you need fast results, consider using a chlorine reducer.
Is pool shock the same as chlorine?
Pool shock is a concentrated form of chlorine designed for rapid sanitization and the removal of combined chlorine (chloramines). While all shock contains chlorine, not all chlorine products are considered ‘shock’—shock treatments are meant for occasional use to eliminate contaminants and combined chlorine, while tablets or liquid chlorine provide daily sanitation.
Why won't my pool hold chlorine?
If chlorine levels drop quickly, check for high phosphates, excessive organic contaminants, or low stabilizer (CYA) levels. If you use liquid chlorine or another form of un-stabilized chlorine, consider using a pool stabilizer to prevent your chlorine from burning off so quickly. Sunlight, heavy rainfall, or algae growth can also cause chlorine to deplete faster than normal.
Can you put too much chlorine in a pool?
Yes, excessive chlorine can cause irritation, damage pool surfaces, and affect water balance. If levels exceed 5 ppm, let the chlorine naturally dissipate or use a chlorine reducer to bring it down safely.

Frequently Asked Questions about Pool Chlorine

How do I increase free chlorine in a pool?
To raise free chlorine levels, add a chlorine-based product such as liquid chlorine or a granular pool shock like Calcium Hypochlorite. If you have a floater or a automatic chlorinator, you can also use Chlorine Tablets. Ensure proper circulation and test your water to maintain a free chlorine level of 2-5 ppm.
How do I reduce chlorine levels in my pool?
If chlorine levels are too high, there are two main ways you can remedy this. You can use a chlorine neutralizer for quick results, which works by breaking down chlorine molecules in your pool water. You can also dilute the water by partially draining and refilling, or letting the chlorine burn off naturally from the Sun's UV rays, though this will take at least a few days. If you need fast results, consider using a chlorine reducer.
Is pool shock the same as chlorine?
Pool shock is a concentrated form of chlorine designed for rapid sanitization and the removal of combined chlorine (chloramines). While all shock contains chlorine, not all chlorine products are considered ‘shock’—shock treatments are meant for occasional use to eliminate contaminants and combined chlorine, while tablets or liquid chlorine provide daily sanitation.
Why won't my pool hold chlorine?
If chlorine levels drop quickly, check for high phosphates, excessive organic contaminants, or low stabilizer (CYA) levels. If you use liquid chlorine or another form of un-stabilized chlorine, consider using a pool stabilizer to prevent your chlorine from burning off so quickly. Sunlight, heavy rainfall, or algae growth can also cause chlorine to deplete faster than normal.
Can you put too much chlorine in a pool?
Yes, excessive chlorine can cause irritation, damage pool surfaces, and affect water balance. If levels exceed 5 ppm, let the chlorine naturally dissipate or use a chlorine reducer to bring it down safely.

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