Shock?

[mike_311]

thanks, so what level should i bring the chlorine up to when i shock it?

[Watermom]

Shock level (and also needed maintenance levels) of chlorine are based on your CYA levels, so for your pool, shock level would be between 12-15. Take a minute to read the Best Guess Chlorine Chart in Janet's signature above for more information about the correlation between the two.