How long do pool chlorine tablets last?
Sophia Koch
Updated on May 04, 2026
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In respect to this, do pool chlorine tablets go bad?
Properly stored chlorine tablets should last three to five years. The storage site should be cool, dry and well-ventilated, such as in a basement.
Beside above, can you swim with chlorine tablets in pool? In most cases, you're best off with 3-inch chlorine tablets, as one single tablet can treat up to 5,000 gallons of water. On the other hand, 1-inch tablets contain far less chlorine (about half as much as 3-inch tablets), so they're better suited for smaller indoor pools and spas.
Thereof, what are the best chlorine tablets for swimming pools?
The 5 Best Pool Chlorine Tablets
- In The Swim 3″ Pool Chlorine Tablets – Best Overall.
- CLOROX 3-Inch Chlorinating Tablets.
- CLOROX Small Pool Chlorine Tablets – Best Value.
- Nava 3-inch Pool Chlorine Tabs.
- Swim Best 3-inch Trichlor Pool-Tablets.
- What makes a good chlorine tab?
How often should you shock your pool?
Always make sure that the filter system is running while shocking the pool. Some pool owners choose to shock their pools once every 1-2 weeks as normal maintenance. This is a great way to keep your chlorine level up and prevent algae growth.
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