In article .com, Ken wrote:
During the course of trying to tee off my main water supply pipe (to
feed a new sprinkler system), I've encountered the need to replace my
old 3/4" galvanized steel supply pipe with 1" copper pipe.

Why do you need to replace it with copper? Any reason you can't use plastic?

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Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.