Leaking joints / fittings on shower

[TeaTime]

I have been having a small issue with some leaking joints since yesterday.

I have a Triton Mimosa Dual Control Mixer Shower.

http://secure.tritonshowers.co.uk/media/custom/upload/File-1361538916.pdf

My leaking joints are located on the inlets of the valve main body. These are 1/2" BSP threads and fitted to them are 90degree bends (compression fittings) 1/2" to 15mm.

http://www.plumbcenter.co.uk/en/plu...stex-45-male-iron-elbow-90-degree-15mm-x-1-2/

The leak is on the valve body to fitting. I have to back the fitting out a little in order to pick up on the inlet pipework that runs down the wall, so the fittings are not all the way in. I have used PTFE tape and Plumbers Mait, but the leak persists (albeit small and slow drips).

Additionally, I have a leak from the shower arm to rear entry fitting. The rear entry fitting is basically a male 1/2" BSP thread that picks up on an elbow in the wall, whilst the other end is plain, with two O-rings built into it. The shower arm slides over the fitting and held in place by a grub screw.

http://www.tritonshowers.co.uk/media/15236/shower_arms_rear_entry.pdf

Any help would be greatly appreciated. At the moment I have the whole thing isolated until I fix the leak.

Cheers in advance,

T

 

[leakydave]

Loctite 55 every time for me! Never leaks... better than PTFE tape.

 

[TeaTime]

Loctite 55 every time for me! Never leaks... better than PTFE tape.

Even if the fittings are not fully engaged?

 

[leakydave]

Yes. Look for video in you tube by Loctite. It's good stuff... I DO NOT work for Loctite!

 

[leakydave]

https://www.youtube.com/watch?v=3o4uMq6yQiQ

 

[TeaTime]

Any thoughts on the rear entry fitting - the two O-ring thing?

 

[leakydave]

If it has O rings it shouldn't need anything else

 

[TeaTime]

If it has O rings it shouldn't need anything else

That's not helpful considering it is leaking

Should I apply any other type of sealant. Please see link above that shows arrangement.

Perhaps I am overtightening the grub screw underneath, creating a good seal on top but not below?

 

[Madrab]

Are there fibre washers or rubber seals in the fitting on the mixer that seal the inlet valves to the 1.2" BSP elbow? May need replaced.
Rubber O rings are probably worn or going hard over time with so many heat cycles. Try new O rings with a small touch of silicon grease prior to refitting.

 

[TeaTime]

Rubber O rings are worn or going hard over time with so many heat cycles. new O rings with a small touch of silicon grease prior to refitting.

O-rings are brand new, silicon grease applied and still leaking slightly.

Overtightening grub screw?

 

[Madrab]

Maybe use a slightly larger tighter O ring. The fitting may have worn a little over time and now it doesn't seal properly.
The grub screw only keeps it in place, though it may have been overtightened and now the pipe may not sit perfectly straight at the seal.

It hasn't been tightened to the point where it has punctured the arm has it?

 

[TeaTime]

It hasn't been tightened to the point where it has punctured the arm has it?

No, the fitting is very thick and only has a small mark where the grub screw lands.

The grub screw has a 'home' in the arm, which then picks up on the fitting so I am sure nothing has punctured.

 

[Madrab]

Fair enough, ruling out everything else then it's back to the 0-ring, only thing it can be as it's the only thing that seals.

 

[TeaTime]

ok, i'll try and get slightly thicker o-rings. thanks

 

[leakydave]

Did you speak to Triton about it?