Diverter valve diaphragm damage
 

I've just had both the diverter valve and expansion tank fail on a 1997
Worcester Combi.

Having taken the old valve to bits, I found the diaphragm to be almost
crumbly...

The rubber looked like tree bark.

Any ideas what would have caused this?
--
Richard Markham

Diverter valve diaphragm damage
 

On Wed, 18 Feb 2004 20:26:00 +0000, Richard Markham wrote:

I've just had both the diverter valve and expansion tank fail on a 1997
Worcester Combi.

Having taken the old valve to bits, I found the diaphragm to be almost
crumbly...

The rubber looked like tree bark.

Any ideas what would have caused this?

6 years of being in hot water?
Perhaps you were needing to top up a lot and dissolved oxygen took a part
in the matter?

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html

Diverter valve diaphragm damage
 

"Richard Markham" wrote in message
...
I've just had both the diverter valve and expansion tank fail on a 1997
Worcester Combi.

Having taken the old valve to bits, I found the diaphragm to be almost
crumbly...

The rubber looked like tree bark.

Any ideas what would have caused this?
--
Richard Markham

need to make sure that you have no leaks letting air in the system, and you
need to cleanse, desludge and add inhibitor when you have finished and
tested the system.
rob

Diverter valve diaphragm damage
 

In article , rob
writes

"Richard Markham" wrote in message
...
I've just had both the diverter valve and expansion tank fail on a 1997
Worcester Combi.

Having taken the old valve to bits, I found the diaphragm to be almost
crumbly...

The rubber looked like tree bark.

Any ideas what would have caused this?
--
Richard Markham

need to make sure that you have no leaks letting air in the system, and you
need to cleanse, desludge and add inhibitor when you have finished and
tested the system.
rob



Will do.

--
Richard Markham