I set up a VERY simple maintenance system while we are away. I have my father-in-law do 2 things every other day:

1) Empty the skimmer
2) Add 1/2 gallon of bleach into the skimmer.

I add it the day we leave and leave him 6 gallons for 2 weeks. I leave the pool covered with the solar cover, and the pump timer set so it's always running when he's there.

I always come back to a perfect pool.