Last summer, I felt like I was loosing the battle to my pool.

I work during the week and wasn't able to properly treat the pool. This year I switched to sustain. Once a week I pop in the chlorine tablet and stabilizer and so far my pool has been crystal clear.

I have an AG 12x16 pool and use a cartridge filter. I run my filter 2-3 hours in the am and 2-3 hours at night. The best think I did was switch from the cheap hoses the pool store gave us to a flex pvc hose. My return water has been stronger this year then all of last year.