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Old 05-01-2019, 11:36 AM  
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Default Bad wirsbo

Are we gunna be ripping out splitting wirsbo eventually .....
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Old 05-01-2019, 02:10 PM  
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do you have more details on what, where it was installed?
looks more like a puncture than split
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Old 05-01-2019, 05:34 PM  
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Someone will probably be ripping out all the pexes eventually if the chlorine levels keep rising in the public water systems... They warned everyone about the possibility of chlorine hurting the pexes probably 20 years ago.

but its not gonna be me.....




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Old 05-01-2019, 07:54 PM  
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Could it have been a tiny stress fracture from expanding the PEX while it might have been too cold in the winter time and the water finally wore through the fracture? Cold temps are why we don't use expanding PEX here up north.

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Old 05-01-2019, 08:13 PM  
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Could it have been a tiny stress fracture from expanding the PEX while it might have been too cold in the winter time and the water finally wore through the fracture? Cold temps are why we don't use expanding PEX here up north.

I know a lot of people down south likes the expanding style because you don't restrict the flow and all but my thinking is this.

Think about it as skin. The skin on a pregnant lady gets expanded and because of the stress it creates on the skin stretch marks appear. If you pull or push something away from its original form you stretch it thinner therefore making it weaker.

Expanding might create a strong pressure down on the fitting from the pipe wanting to pull back to its original form but that strong leak free connection does not change the fact that the material now is stretched out and flowing water might more easily wear through that's thinned out part of the pipe that is under a constant stress. Think of the difference in a rubber band. If you try to cut a rubber band with a knife you will find that it takes more force or movement of the knife if the rubber is just laying flat not stretched out. If you stretch out that rubber band you barely have to touch it with a knife and as soon as the first tiny cut is made the band snaps right apart because of the power of the stress held in the material under stress.

This might be an extreme comparison but the physics of it is the same meaning the water can more easily wear through that part of the pipe that is stretched out.

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Old 05-01-2019, 08:42 PM  
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Quote:
Originally Posted by ShtRnsdownhill View Post
do you have more details on what, where it was installed?
looks more like a puncture than split
1-1/4 hot water domestic line, arrived to repair a pin hole leak in the wirsbo, after cutting out an making my repair i turned the water back on and noticed a split.
The split was right where i expanded and put my coupling. I do know how it happend, but wirsbo has been talked about as a high quality product as far as plastic water piping goes so thats why it caught me by suprise.
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Old 05-01-2019, 08:55 PM  
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Quote:
Originally Posted by canuck92 View Post
1-1/4 hot water domestic line, arrived to repair a pin hole leak in the wirsbo, after cutting out an making my repair i turned the water back on and noticed a split.
The split was right where i expanded and put my coupling. I do know how it happend, but wirsbo has been talked about as a high quality product as far as plastic water piping goes so thats why it caught me by suprise.
There's your answer, anything touching hot water fails a lot quicker than the rest.
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Old 05-01-2019, 10:02 PM  
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Quote:
Originally Posted by canuck92 View Post
1-1/4 hot water domestic line, arrived to repair a pin hole leak in the wirsbo, after cutting out an making my repair i turned the water back on and noticed a split.
The split was right where i expanded and put my coupling. I do know how it happend, but wirsbo has been talked about as a high quality product as far as plastic water piping goes so thats why it caught me by suprise.

did you check and make sure no dirt got on the expander before you used it or any sharp edges that may have caused it, did you cut it out and expand it again? how did that come out, did the pex feel like it was brittle?
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Old 05-02-2019, 07:03 AM  
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Quote:
Originally Posted by canuck92 View Post
1-1/4 hot water domestic line, arrived to repair a pin hole leak in the wirsbo, after cutting out an making my repair i turned the water back on and noticed a split.
The split was right where i expanded and put my coupling. I do know how it happend, but wirsbo has been talked about as a high quality product as far as plastic water piping goes so thats why it caught me by suprise.

if that was the case then you should have used a sharkbite coupling to make the transition to the new stuff....
I dont care to expand old wirsbo pipe for this reason..... and that is what they make sharkbites for.....anyway.....

The expanding ability of the wirsbo pipe is probably its best feature in my opinion.... we have seen many, many homes under forclosure with wirsbo pipe that had totally frozen up and to my suprise their were no breaks in the system at all.... The Delta cartriges froze and broke but the pipe stayed intact.....

with the first case I ran into, I thought it was a miracle


...
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Old 05-02-2019, 08:32 AM  
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Quote:
Originally Posted by The Dane View Post
Could it have been a tiny stress fracture from expanding the PEX while it might have been too cold in the winter time and the water finally wore through the fracture? Cold temps are why we don't use expanding PEX here up north.

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No cold temps its in an isulated storage room.
Brittle wirsbo with lots of calcite build up.
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