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aemeijers aemeijers is offline
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Default Technique for dry fitting PVC pipe?

don &/or Lucille wrote:
Try using pvc primer/cleaner as a lubricant?
wrote in message
...
In previous projects I really haven't had the need to dry assemble a
bunch of fittings to get the alignment right and make sure it would
all work before gluing. In the case of some recent work with 2" PVC
I had pipes making a tight 180 turn and together with a 3 way valve,
it all has to align just right with the existing piping in a short
distance with no wiggle room.

So, I put the pipes and fittings together dry first, to make sure they
aligned OK. But there were two problems:

1 - It was very hard to get the dry pipe to bottom in the sockets of
the fittings

2 - It was even harder to then pull them apart.

I tried using some dish washing soap, but it didn't help much. Which
got me to wondering if there are any tricks the pros use?



Deburr (and maybe even chamfer like a dowel) the hell out of square-cut
ends, is the one plumbers always told me. The 'slip fit' for new pipe
and new couplings is pretty tight anyway. One burr or non-square end cut
can make the dry-fit a case of pounding an oval peg into a round hole,
if the approach angle is slightly off 90 degrees. Even more so when you
are using glue with a very short open time. This is why ground assembly,
and making as absolutely few joints in the air as possible, is the best
approach for DIYs. My BIL did some feeds, drains and vents for his
washing machine move that look like something out of Rube Goldberg, to
get all the runs to line up. Too bad about the stud and plate that used
to be there. He would have been better off cutting the whole mess back
about 15 feet, and starting over. (What can I say- he is a college
professor with a green thumb, and a nice guy, but he is no DIY. But my
SWMBO sister will not be denied.)

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