Thanks Al! You put my mind at ease.

The few mice I have found in the skimmers are never more then 24 hours old (or dead as the case may be). No decay or dead animal smell for that matter. Today's mouse couldn't have been more than a few hours old. (I really don't know why I checked the skimmers twice in a few hours. )

Maybe I am just being overly cautious?

I think I will leave it alone and let the Cl levels come back down to the normal operating range.