Prep work for the olympics....

Thumbs down.
The copper can lead to expensive staining and green hair.

Having copper in the water would not really reduce the amount of chlorine you should maintain in the water anyway. It would just be a backup if you happened to let the FC drop too low. And if you just want a backup (really should be no need for it), use polyquat instead as at least it will not potentially cause staining.
 
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