While I was digging up my water pipes, I came across a PVC compression
coupling that was used to connect two metal pipes together. How
suitable is this? This is in the main water line that goes into my
house, and I"m concerned about the life span of this coupling. It
doesn't leak at this point, but what kind of life span do these things
have? If I leave it, am I going to have to dig it up in a couple of
years when it starts to leak? I have most of this pipe dug up right
now, and it would be easier to replace it all now than to have to dig
it back up in a couple of years. OTOH if these things are good for a
few decades, then I'm just gonna fill the ditch in and leave it.
Boy, you sure can start enough new threads about the
same thing. In the original thread you said the pipe from
the street was 40 years old, rusted, in unknown condition, etc.
Now you have it dug up and you're worried about just one fitting?
Why not just replace the whole run with whatever is approved
and typically used in your area? As I stated before, around
here, this part of NJ, that would be black poly 1" pipe.
How much does peace of mind factor into this?
How hard/expensive would it be to eliminate the fitting by replacing
Somewhere in between those 2 items is your answer.
If someone in this group - someone sitting at a keyboard and not
looking into your trench - tells you that the fitting is good for
another 20 years and you bury it again, will that give you enough
peace of mind to sleep well for next few years?
You yourself said "it would be easier to replace it all now than to
have to dig it back up in a couple of years"
How much peace of mind would it give you to know that the fitting was
gone and you knew that you had new material, end to end?
The one piece I can't speak to is the cost, but I assume you can find
that out fairly easily, if you don't already know it. Only you know
the crossover point between complete peace of mind and the hit on your
Just replace the ENTIRE LINE, leave nothing of the existing
if you want overkill and PEX is permitted in your area......
Run the PEX inside a PVC line from curb to meter....
this minimizes digging in the future and protects the line from
mechanical damage. if the PEX ever has a problem just dig at each end
and snake a new line thru the PVC, use schedule 40 for added
I wouldnt use copper too many people are stealing it:(
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