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Those instructions are for a full cylinder drain which im guessing wasnt needed to change a tap?
Correct
Discuss Gledhill light unvented cylinder imploded in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Those instructions are for a full cylinder drain which im guessing wasnt needed to change a tap?
Hi Oz,
I don’t deny any wrong doing.
Fortunately, I have discussed all my findings with the help of this forum and have advised the client of the possibility that the cylinder is incorrectly installed.
I’ve also shown him the paragraph relating to drain down procedure to show that while I didn’t carry out the procedure, I have called technical support of a different manufacturer to find if what I have done by changing the taps and draining down exactly as I did would cause the cylinder to implode.
As Mentioned, it would take 15bar of negative pressure to implode a tank so I am doing everything to come to a resolution.
If I have to pay for a new tank and install it then I will do it.
The client is being understanding and thanked me for investigating the matter.
He has been let down by two installers first one of which incorrectly installed it and second installer just changed the tank for an identical one without changing or checking that it was correctly installed in the first place.
The installer has also been serving the cylinder since the install so if what’s been mentioned here is correct then the installer has no clue on what he’s doing.
I would say if the installation is incorrect then the liability lies with the installer.
If I’m proved to be in the wrong then I will correct it.
The expansion vessel in the hit would still take up expansion.
The combination valve is wrong but I can’t see how this would cause the cylinder to implode
Reply to Gledhill light unvented cylinder imploded in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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