My pool was the same size w/ vinyl liner at my conversion four years ago as your pool. During conversion I used no algicide or CYA, just 4 gallons of 10% pool bleach per night for four nights. I let the pump on throughout. I'm not 100% positive, but I think your not shocking your pool with enough chlorine. I did not see any fading with my liner at that high level of chlorine, but yours may be different. Since conversion, this site (Ben) has saved me hundreds of dollars in pool chemicals. My pool has been crystal clear following Ben's protocol.

Guppy