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How long to leave before retreating (if it does not clear on the first application)?

April 26, 2017application clear leave retreating

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How long to leave before retreating (if it does not clear on the first application)?

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Hydra Crystal will usually clear the green algae cells on its first application, but in cases of heavy investation a second treatment may be necessary. In 2nd treatment use at the initial dosage rate and you can retreat water after 24 hours.