Do pex lines need to have backing to secure in place?
EvanLarsen
| Posted in General Discussion on
I’m running Uponor Pex lines through my house. I’m wondering if I need a backing plate where the lines are terminated for sinks and toilets? Or can I just have them hanging like they are in this picture?
It seems like the lines are plenty sturdy and I’ve read its good to have a bit of slack in the lines.
I’m very new to this and was wondering if this is okay? or will I have issues with the lines rubbing against the frame due to hammering or banging noises once I put the drywall in?
Thanks!
Replies
Not OK. Any termination should be firmly supported.
Lots of options available. Some examples: https://www.youtube.com/watch?v=gImV46bxvdU
You can also use the usual copper / brass fittings with an adapter.
What is the plan for the shut off valve?
Make sure the lines are separated, and secured so they don't rub.
I have Uponor shut off valves. So the pex runs right to the shutoff valve.
What would happen if they are not firmly supported?
What's the deal with that electrical cable in the picture? It seem to have some kind of T fitting in it.
It appears to me to be passing through a hole to the other side of the wall there.
This looks like a bonding wire on a large cable, which happens to be in front of the NM cable
PEX moves with pressure and temperature changes.
If not anchored, the trim will be sliding around scratching up the wall finish.
If the hole is not large enough for the motion, the PEX will wear on the hole edge.
Any abuse of the stub out is transferred to the hidden fittings, potential hidden failures.