Leaking CH pipe - Compression and push-fit mismatch?

[russellpeters]

@Charnwood - Purely my ignorance and lack of adequate research I am afraid. Now I know better.

I am going to leave ceiling hole as it is for at least a couple of months and let the ceiling void dry out. I will also leave the heating at a higher setting than usual and hopefully the lack of moisture and high temperature will kill most of the mould. I will also try and spray some mould killer into the void (I have a Bosch PFS 55 fine-spray system that should do the job quite well).

My next project - how to repair the hole and make it disappear (in a few weeks time that is) This is not the only hole I have in the house Any suggestions?

 

[Dan Robinson]

I can't believe you are leaving a compression fitting in a ceiling that you have already butchered to repair.

Whilst it is open why not repair it properly and put a fitting that is DESIGNED to be concealed on the pipe work?

 

[russellpeters]

Hello Dan - Are you recommending that I replace the compression elbow with a push-fit one? Or are you suggesting that I use either PTFE or jointing paste around thread before screwing the nut on? Sorry, I did not understand what you meant by "DESIGNED to be concealed on the pipe work".

I did not want to drain down the system again and that's why was desperately hoping that what I did was good enough. But if it is not good enough I will drain the system down again and use PTFE tape or jointing paste this time.

Follow-up question - If I use jointing paste (Fernox Water Hawk) can I, if needed, undo the fitting in the future? Or does the jointing paste make it a one-way process?

 

[Norcon]

No need to fit an inferior push fit. Pushfits are for cowboy plumbers and diyers who know no better.

 

[Dan Robinson]

Russell, yes I am.

Compression joints in inaccessible places are illegal on gas for a reason.

On Water it's just plain stupid.

Ignore idiots like Nobcorn.

You should have done it correctly the first time you had the system drained.

 

[Norcon]

Dom... this ain't gas. So it can be done properly.
Re read the OP.

We have a compression joint on a system pumping out 324 bar.
No push fit system in the world will withstand that!

If you think there is then post up the data. (He won't)

 

[Dan Robinson]

Yawn.