I've been installing a solar pool heater from http://www.h2otsun.com over the past weekend. Pics are of the basic panel assembly on the roof which I finished Sunday. Tuesday evening and Wed. I got the piping run from the pad to the roof and started it up under manual control. Still need to install the auto conrols.
The morning the water was 81, @ 12:30 it is 86. Pool is 9,000 gallon 12*24, collector area is 216 square feet made up of 12 18 foot long / 1 foot wide strips.