Post
by juddster »
Tue Jun 10, 2008 4:32 pm
First off, thanks for your responses 'rosebery' and 'htg engineer' . 'CC' - I’ve got to the bottom of the problem I have - hope it helps you.
Just for info, the cylinder we have is a Fortic Type 3 (about 12 years old):
The plumber came round today to have a look and determined that the cylinder was clogged up with limescale and that was causing the problem. To work this out, he attached a pipe to the cold water inlet (from the expansion tank to the hot water tank) and blew down it. He could hear the limescale sloshing about and was expecting water to come out of the vent from the hot water tank to the expansion tank but it didn’t.
After he left I managed to clear some of the limescale from the vent pipe by poking coat hanger wire down it. Lots of air bubbled out of the vent pipe for about 15 mins and the hot water pressure is now back to normal, but I guess it’s only a matter of time before it happens again.
Basically, we need a new cylinder.
Thanks.