Perhaps not every year but if you have an old tank that doesn't have a
bladder between the air and water, eventually you lose the air bubble and
you have to bleed it.


"Gary R. Lloyd" wrote in message
...
On Tue, 16 Nov 2004 01:45:00 GMT, "Art"
wrote:

If you do get it replaced, you might also have the expansion tank replaced
if you still have the original and have to bleed it every year. The new
ones are small and do not have to be bled.

If your tank has to be bled every year, the problem is not the tank.
Neither type of tank should need annual bleeding.

Gary R. Lloyd CMS
HVACR Troubleshooting Books/Software
http://www.techmethod.com