109 products
Pool Chemicals & Water Care
Find pool sanitizers, shock, balancing products and specialty treatments for routine maintenance and specific water problems. Choose a category below to compare the products suited to your pool's sanitizer system and current water-test results.
Local-only products: Benchmark Pool Supply does not ship chlorine tablets, liquid chlorine or muriatic acid. These products are available for local purchase or pickup in Fresno and Clovis, subject to stock. Check each product listing for availability and fulfillment options; shipping eligibility varies for other chemicals.
Shop by Treatment Type
- Chlorine Tablets – Compare tablet sizes, chlorine chemistry and dispensing requirements.
- Pool Shock – Chlorine and non-chlorine treatment options with different applications.
- Water Balancers – Products for water-balance adjustments based on test results.
- Algaecides – Prevention and treatment products selected for the algae problem and pool system.
- Clarifiers – Products for addressing fine suspended particles when suitable for the cause of cloudiness and filtration method.
- Phosphate Removers – Treatments for measured phosphate levels when removal is appropriate.
- Pool & Spa Water Testing – Kits, strips and testing supplies to guide product selection.
Getting ready for swim season? Read our guide to essential pool chemicals for California pools for an overview of common water-care supplies.
Choose Products for the Problem
Start with water testing and an assessment of circulation and filtration. Sanitizer, pH, alkalinity, calcium hardness and stabilizer requirements depend on the pool and treatment system. Cloudy water does not automatically mean that an algaecide, clarifier or phosphate remover is needed.
For ongoing tablet sanitation, use the Chlorine Tablets category. For oxidation or a shock treatment, compare the separate Pool Shock category and check the active ingredient and label. Non-chlorine shock does not replace the pool's ongoing sanitizer.
Handle Pool Chemicals Carefully
Read the exact product label before use. Never mix pool chemicals together, including different chlorine types, and keep chlorine separate from acids. Follow the label's storage, protective-equipment, application and re-entry directions. Do not assume that products with similar names use the same dose or equipment.
Pool Chemicals FAQ
Are chlorine tablets and shock interchangeable?
No. Tablet products and shock treatments have different applications. Select the product for the intended job and follow its label.
Do saltwater pools still need water-care products?
Yes. A salt chlorine generator supplies chlorine, but testing and water-balance adjustments are still needed.
What should I check before buying a treatment?
Bring current water-test results, your pool volume and information about the sanitizer and filter. These help narrow down suitable products.
Can all pool chemicals be shipped?
No. Chlorine tablets, liquid chlorine and muriatic acid are local-only at Benchmark Pool Supply. Check the individual listing for other products.
Can Benchmark help me choose?
Our Fresno and Clovis teams can help you review water-test results and identify products appropriate for your pool.
