From: utzoo!decvax!harpo!floyd!whuxlb!eisx!npoiv!alice!rabbit!ss
Newsgroups: net.physics
Title: Re: hot water faucets
Article-I.D.: rabbit.1463
Posted: Thu May 12 09:50:56 1983
Received: Tue May 17 10:01:02 1983
References: <768@pur-phy.UUCP>

The reason why hot water from a faucet reduces after a while is
that the faucet uses a metal ball valve. As the ball heats up, it expands
and reduces the flow of water. It was probably meant to help keep the
temperature of the water coming out of the faucet relatively constant,
if the hot water temperature varied somewhat. ( This obviously dosen't
work if you have ONLY the hot water running.)

Sharad Singhal