Calcupedia

Pool Shock Calculator

Construction & Home Improvement

Calculates how much chlorine shock product to add to a pool to break down chloramines and restore free chlorine.

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100500,000
020
020

Amount Needed

609.9

The amount of shock product needed (fluid ounces for liquid, dry ounces for granular).

Combined Available Chlorine (ppm)

2.0

The chloramine level, driving the need for shock treatment.

Adjustment Level

19.0

The calculated shock adjustment level used in the dosing formula.

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Calculator Stats

Odeh Ahwal

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Odeh Ahwal
Reviewed and verifiedThis calculator was reviewed and verified by the Calcupedia due diligence team.

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Frequently Asked Questions

What is the difference between total and free available chlorine?

Free Available Chlorine (FAC) is chlorine still able to sanitize your pool. Total Available Chlorine (TAC) includes FAC plus chlorine that has already combined with contaminants (chloramines). The gap between them (combined chlorine) is what shock treatment breaks down and removes.

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