Before I leave???

Going on vaction next week and I need to know what to do with my pool.

Here's my info...
~17,500 gal. salt pool
Chem readings as of this morning:
FC 4
CC 4
pH 7.8 (it was 7.4 on Thursday)
CYA 50
additional readings from earlier this week...
TA 70 - 80 (one day it was 70 and the next it was 80????)
Ca hardness 310

Water temp is at 94!!!!!
And Cl production is set to 80%

My pumps are running from 7am to 10am and then from 6pm to 11pm.

I know the pH is high. Should I adjust it now with a pint or two of acid? If I do this, the acid will rise up to who knows what when I get back next Saturday. Or should I just put a gallon of acid in before I leave...the pH will be low at first, but I know that it rises fast with these temps.

Also, do you think my Cl production is too high? I just increased it last week b/c my pool temp is at 94 and full sun all day.

Help me out here please:)
Thanks