I'm not really Skitch Hitchcock, but I did ride his World Champion model skateboard in 1975!
My route was a bit different, but I ended up at the same place. Pool stayed clear the first year by sheer overchlorination(?). Second year it turned green and I got poolstore'ed.
After visting my THIRD pool store I saw a Taylor K-2006 for sale and that was my last purchase at a pool store. Somebody on reddit clued me in to the CYA/chlorine relationship and I got it cleared on my own.
This spring I wandered across TFP and fell in love with the Pool Math page. Thanks for everything you all do!
Before and after photos attached! The green pool is 7/29/2014. The blue pool is this morning.