Expert Verified Updated: March 2026

Dichlor Pool Shock Calculator

Fast-acting and stabilized. Calculate the exact dose needed for a quick chlorine boost, while tracking the impact on your Cyanuric Acid levels.

Quick Conclusion
To raise Free Chlorine (FC) by 10 ppm in a 10,000-gallon pool, use 1.5 lbs of Dichlor. Warning: This dose will also raise your Cyanuric Acid (CYA) by 9 ppm. Use sparingly!

Technical Comparison

Desired FC Boost Dichlor (10k Gal) CYA Increase
+5 ppm 12 oz +4.5 ppm
+10 ppm 1.5 lbs +9.1 ppm
+20 ppm 3.0 lbs +18.2 ppm

Actionable Steps

Pro-Tip

The "Stabilizer" Myth: Pool stores often sell Dichlor as "Triple Action" or "Premium" shock. In reality, the "special feature" is just CYA. Don't pay a premium for a chemical that might force you to drain your pool later!

Frequently Asked Questions

Can I use it in vinyl?

Yes, it dissolves very quickly.

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