On Thu, 22 Jun 2006 10:43:30 GMT, fred wrote:

Nice one John, I've considered a similar setup with a (much) longer central
pipe as a return for a DHW circulation pump.

Twas indeed. The only change I would make is instead of copper bashing to
make a right angle I would solder a 90 end feed elbow to the end of the 15
mm tube but would cut off the unsoldered arm of the elbow.

OTOH, every commerical Surrey flange I have seen doesn't have a right angle
for water draw off.