Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
wirsbo blisters
Options

arne 53
Member Posts: 14
I have inherited a job with Wirsbo 1/2" hePEX sandwiched in a floor between plywood. When we took up a piece of wood the tubing below had numerous blisters, like little bubbles in the pipe, in some areas. The blisters appear to be only on the surface just under a thin layer of some material. We had just put water to the tubing about a week ago and the tubing we could see looked OK. Has anyone ever seen this and should I be worried?
0
Comments
-
Same issue
with a job I had under 50 psi air for one year, and air pockets were forming under the co-extruded oxygen barrier. I guess the oxygen barriers do work. Also, I've seen pockets on the pipe right out of the box, apparently the co-extruded barrier not adhering properly during mfg., but barrier still in tact.0 -
wirsbo blisters
Is there a time limit for air pressure testing? Mine also was under air pressure for about 9 months. The main question I have is the tubing and oxygen barrier OK, even with the blisters?0 -
we saw the same thing
on a different brand of pipe. shouldn't hurt anything.Rob Brown
Designer for Rockport Mechanical
in beautiful Rockport Maine.0
This discussion has been closed.
Categories
- All Categories
- 87K THE MAIN WALL
- 3.2K A-C, Heat Pumps & Refrigeration
- 57 Biomass
- 425 Carbon Monoxide Awareness
- 113 Chimneys & Flues
- 2.1K Domestic Hot Water
- 5.7K Gas Heating
- 106 Geothermal
- 160 Indoor-Air Quality
- 3.6K Oil Heating
- 70 Pipe Deterioration
- 981 Plumbing
- 6.3K Radiant Heating
- 388 Solar
- 15.4K Strictly Steam
- 3.4K Thermostats and Controls
- 54 Water Quality
- 44 Industry Classes
- 48 Job Opportunities
- 18 Recall Announcements