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I would clean the filters thoroughly, turn down the temp and add enough chlorine to bring ppm up to 10-15 or so. Upon returning, if you find you still have a substantial amount of free chlorine, just leave the cover open to the sun (if outside) to help lower it...or invite your nasty inlaws over for a soak...
Thanks again everyone. Â I have a HS which runs all the time on the circ pump with ozone and N2, so I can't schedule any filtration.I will be out doing this today...probably not the filter cleaning since it is raining and I will be due for a water change when I get back.See you guys in about a week!
1. How can you tell if your ozonator is working? Â
In HS tubs bubbles of gas come out of the vent through which hot water comes out of.
Nlittle, Put in a bit extra of dichlor. When you come back, does again to 5 ppm.  Don't worry about it.   With the O3, circ pump and  some extra dichlor, you'll be fine.