How much pool shock do I need for my pool?

The amount depends on your pool size, current chlorine level, and water conditions. Use the Pool Shock Calculator on Standard Chemicals to determine the exact dose based on your pool.

What is calcium hypochlorite pool shock?

Calcium hypochlorite (cal hypo) is a fast-acting, unstabilized chlorine used to quickly raise chlorine levels, kill algae, and restore water clarity without adding cyanuric acid (CYA).

Does calcium hypochlorite add cyanuric acid (CYA)?

No. Calcium hypochlorite does not add cyanuric acid, making it ideal for pools with high stabilizer levels where additional CYA would reduce chlorine effectiveness.

Why is my pool still green even when chlorine levels are high?

A pool can remain green due to algae growth, poor circulation, or high cyanuric acid levels reducing chlorine effectiveness. In these cases, a stronger shock treatment is typically required.

When should I use pool shock instead of chlorine tablets?

Pool shock is used for rapid chlorine increases to treat algae, cloudy water, and contamination, while chlorine tablets are used for slow, ongoing sanitation and maintenance.

About Us

Standard Chemicals was established to redefine excellence in the pool, spa, and water treatment industry. With 20+ years of manufacturing track record within the pool and spa industry, our team brings together expertise in packaging, engineering, and operations to build a company grounded in elevated standards and simplified pool care that customers can trust.

We recognized a growing need for a dependable source of high-quality pool sanitizers—produced with the same care, consistency, and safety demanded by the world’s most discerning brands. From this vision, Standard Chemicals emerged as a manufacturer and supplier devoted to one simple mission: deliver professional-grade water treatment products that ensure clean, safe, and enjoyable swimming environments for all.

Drawing on decades of proven manufacturing experience in chemical packaging and processing, Standard Chemicals operates with an established foundation of technical excellence. This allows us to leverage existing infrastructure, quality systems, and packaging design to deliver superior products at competitive pricing—without compromising on purity, performance, or safety. Through this integration of experience and innovation, we are setting new benchmarks for reliability and value in pool care, proudly shaping the next chapter of water treatment excellence.