Installed Unvented cylinder will cause water pressure high?

[Jurgenjay]

It would be interesting to know how high the pressure became and what the arrangements for expansion and over-pressure situations are.

Taps and pipes are usually tested for maximum 10 bar pressure so it's quite odd that they should fail even if they were old as the pressure might have been kept quite reasonably well below this. I would like reassurance that the correct safety arrangements for limiting the maximum pressure are in place...

Hi how to know the pressure now?---this needs the installer to test?
the arrangements for expansion and over-pressure situation---this needs the installer to tell?

The tap actually brand new...

reassurance that the correct safety arrangements for limiting the maximum pressure are in place...====this again needs my installer of boiler to tell?
Otherwise, how to find out if there's any safety arrangements for limiting the maximum pressure?

Thanks!

 

[king of pipes]

Believe it or not it's quite common to have issues with existing pipework on upgraded old systems none of us know what condition the pipework is in and how worn it is ? These problems need to be addressed when they occur and unfortunately sometimes it can be a total re pipe or at least a replacement of faulty sections, your installer should of at least made you aware of the possible problems I always put it in writing to cover eventualities should they happen . Kop

 

[Ric2013]

Hi how to know the pressure now?---this needs the installer to test?
the arrangements for expansion and over-pressure situation---this needs the installer to tell?

The tap actually brand new...

reassurance that the correct safety arrangements for limiting the maximum pressure are in place...====this again needs my installer of boiler to tell?
Otherwise, how to find out if there's any safety arrangements for limiting the maximum pressure?

Thanks!

I wouldn't bother actually measuring the pressure but if you can post some pictures of the new cylinder and how it is plumbed in, that will give us some idea. Realistically, it's probably fine and it's just one of those things.

 

[Jurgenjay]

I wouldn't bother actually measuring the pressure but if you can post some pictures of the new cylinder and how it is plumbed in, that will give us some idea. Realistically, it's probably fine and it's just one of those things.

Please see the photos as requested.
Thank you!

 

[Jurgenjay]

Believe it or not it's quite common to have issues with existing pipework on upgraded old systems none of us know what condition the pipework is in and how worn it is ? These problems need to be addressed when they occur and unfortunately sometimes it can be a total re pipe or at least a replacement of faulty sections, your installer should of at least made you aware of the possible problems I always put it in writing to cover eventualities should they happen . Kop

Sadly, my installer did not tell me this, and told me unvented cylinder wouldn't give more pressure.....until the leaks happened twice and then I did research and found it will increase pressure indeed!

 

[Ric2013]

I don't have an unvented certificate so I'm no authority on this, but I can't see any obvious problems with the installation.

 

[Jurgenjay]

I don't have an unvented certificate so I'm no authority on this, but I can't see any obvious problems with the installation.

Thanks! No problem!