Homeowner Forum / Plumbing / July 2008

Last week we installed an electric tankless hot water system.
Everything worked as expected for several days, so we know things were
hooked up right.  For the last couple of days there has been a strange
hot water problem that no one can figure out.  Here's what's

   I was installing new base molding behind the toilet in our basement
bathroom and ended up puncturing a hole in a 3/4" cold water copper pipe
inside an interior wall. The pipe is punctured slightly more than one inch
above the concrete foundation. The hole diameter is about ...

Last week the county replaced my water meter and installed a backflow
valve. In preparation for this six months ago I had an old pressure
reducing valve replaced and a thermal expansion tank installed on my
water heater by a master plumber.