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Discuss Replacement Shower Arm in the Plumbing Forum area at PlumbersForums.net

Geoff Billson

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Because there is a 5 inch gap between the tiled plaster board and the faceplate elbow screwed to the noggin I need to join an extension to my new shower arm to ensure sufficient length of arm into the shower cubicle.
I will therefore have 2 joins. The 1/2 inch BSP thread of the showerarm into the extension and the 1/2 inch BSP thread of the extension into the fixed wall plate.
My question is what is the best method to ensure a water tight seal on both these joints. Do I use a rubber washer or just sealing tape such as ptfe or locktite string?
Recommendations would be greatly appreciated.
 

rpm

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Loctite 55 here.
How will the rubber washer seal a male/female joint without a sealing face.
 
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Geoff Billson

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Good advice thanks. I have not yet removed the old arm or purchased the extension so I am not sure about the sealing face situation. I imagine the face plate on the noggin is likely to have a sealing face but not sure about the extension. Sounds like the best option is a sealing washer if the fitting allows it or otherwise Loctite cord or maybe both if the situation allows it. Is that the way to go?
 

Riley

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How will you get the washer into the wall fitting??
 
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Geoff Billson

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Good point.It may already have one or I might be able to access it through the plaster board. Will have to face the problem on the day.
 

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