Chlorine shock

Chlorinating, maintaining the right chlorine levels,
chlorine problems. Dichlor, trichlor, cal hypo, bleach,
granules, chlorine pucks and chlorine sticks.
gillianb
Pool Newbie
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Chlorine shock

Postby gillianb » Thu 17 Jul, 2008 06:39

How much chlorine per liter do you use to shock?


Strannik-au
Swimming Pool Wizard
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Location: Brisbane, Australia

Postby Strannik-au » Thu 17 Jul, 2008 07:46

depending on your CYA level. you should aim for 10% of CYA
chem geek
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Postby chem geek » Thu 17 Jul, 2008 11:34

If one is shocking to get rid of algae, then the target FC level for shocking is around 40% of the CYA level though at high CYA levels this isn't so practical. You can use this chart as a guide.

You do not normally need to shock your pool if you maintain the chlorine level consistently. You only need to shock if there is visible algae or dull or cloudy water or measured Combined Chlorine or a known "accident" (discharge or dead animal, etc.).
Strannik-au
Swimming Pool Wizard
Swimming Pool Wizard
Posts: 77
Joined: Fri 04 Apr, 2008 13:17
Location: Brisbane, Australia

Postby Strannik-au » Fri 18 Jul, 2008 06:00

oops, my mistake, don't know why i put 10%, must've been too sleepy :oops:

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