On 2012-04-25, John Gilmer wrote:

Back in the days of Jimmy Who, lots of folks put up solar water heating
panels. Within a decade almost all of them had been bypassed and most
of them completely removed.

I think a lot of this was due to old technology. PVC, which most of
those early systems were made of, was not UV resistant and in a short
span of a few years most of it broke down and fell apart. Those early
systems were jes not reliable. I also don't think they were very cost
effective in the long run, so didn't get rebuilt when newer material
technology appeared. Jes a guess.

nb

--
vi --the heart of evil!