Pool Sanitizers - Keep Your Pool Clean & Safe

Nothing beats stepping into a sparkling, crystal-clear pool on a warm day. The secret to that inviting water? A reliable pool sanitizer. At PST Pool Supplies, you will find a trusted selection of pool chlorine tablets and chlorinating granules designed to keep your swimming pool free from harmful bacteria, algae, and contaminants. Whether you are opening the pool for the season or maintaining it all summer long, our sanitizers from Pool Season and DuraChlor deliver the consistent, stabilized chlorine your water needs.

Chlorine Tablets vs. Chlorinating Granules: Which Is Right for You?

Choosing the right pool sanitizer starts with understanding how each format works. Our 3-inch chlorinating tablets — available in convenient 25 lb and 50 lb buckets — dissolve slowly in your skimmer, floater, or automatic feeder, providing steady, long-lasting sanitation with minimal effort. They are ideal for routine pool maintenance and deliver dependable water sanitation day after day. If you prefer a faster-acting solution, chlorinating granules like our DuraChlor 56 and DuraChlor 62% dichlor pool sanitizer dissolve quickly, making them perfect for spot treatments and targeted algae prevention. Granular dichlor is also an excellent choice for vinyl-liner pools since it will not bleach or damage surfaces.

Trusted Brands, Bulk Savings, and Expert-Level Pool Care

We carry two of the most respected names in pool chlorine: Pool Season and DuraChlor. Pool Season's giant chlorinating tablets and concentrates are a go-to for homeowners who want reliable, stabilized chlorine at an unbeatable value. DuraChlor's dichlor granular formulas offer professional-grade sanitation in sizes ranging from 2 lb to 50 lb, so you can buy exactly what you need — or stock up in bulk to save. The CDC recommends maintaining a free chlorine level of at least 1 ppm and a pH between 7.0 and 7.8 for safe recreational swimming, and the EPA's water quality regulations reinforce how critical proper disinfection is for health and safety.

Complete Your Pool Care Routine

Sanitizers work best as part of a full care routine. After treating your water with chlorine tablets or granules, consider giving your pool a boost with a pool shock treatment to break down chloramines and restore water clarity. Regular testing is just as important — browse our pool test kits and water testing equipment to make sure your chlorine and pH levels stay in the ideal range all season.

Ready to enjoy a clean, safe pool all summer? Browse our full lineup of pool sanitizers below, pick the format and size that fits your needs, and order today with confidence. Your sparkling pool is just a click away.