Circulating hot water Home › Forums › Public Forums › General Plumbing › Circulating hot water This topic has 1 reply, 2 voices, and was last updated 21 years, 6 months ago by rvaughan. Viewing 1 reply thread Author Posts 1 Oct 2002 at 6:02 am #275812 Louis Dean I have been told that the circulating hot water will wear out the copper pipes in a few years and that pin hole leaks will develop. I have not found any proof of that yet. Where can I learn about it? 2 Oct 2002 at 3:17 am #292931 rvaughanParticipant bop make sure all pipes are properly reamed. Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In