I am building a pool as we speak. These are some I came up with.

http://swimming.about.com/gi/dynamic...A%2F%2Fpool-in
formation.com%2Fconstruc.html
http://swimming.about.com/cs/pooldes...=swimming+pool
http://ashtonpools.com/pools/care/hydraulics.htm
http://www.poolcenter.com/library.htm
http://www.fsec.ucf.edu/solar/APPS/P...g.HTM#Economic