Posted by John Reitter on December 28, 1997 at 20:29:32:
I recently had to replace an old water heater and
bring the installation "up to code". Part of that
entailed re-doing the existing galvanized water
piping. I have almost the entire project completed but
cannot get one of the 90 degree joints to fit together
without leaking under pressure. I have tried to
replace it with another 90 degree fitting - same
problem - it leaks on both ends of the fitting. I am
using white teflon tape on all of the male fittings.
What am I missing? Tightening too much? Not enough?
(This is on the hot water side of the water heater,
if it makes a difference).