On Fri, 13 Apr 2012 14:18:09 -0400, wrote:

On Fri, 13 Apr 2012 07:33:16 -0400, "J. Clarke"
wrote:

In article ,
says...

On Thu, 12 Apr 2012 21:57:59 -0400, "m II" wrote:

Did my house in PEX but I will never use those sharkbite fittings. Too
expensive and I don't trust them.

The pinch ring fittings work fabulous and never seen one leak in four
houses, all done by amateur labour.


As long as you use good pinch rings and the proper tool. My one
reservation with the rings is how long will they last, and what
happens if one corrodes in the wall? (say a mouse ****es on it, or
some other chemical reaction weakens the clamp material)

The rings are copper, they should be at least as resistant to mouse pee
as copper pipe, and there's a lot less area exposed to mouse pee.

-----------
"Mike Marlow" wrote in message
.. .
Ugh! I just can't warm to those. I've used them and I realize their
value,
but I just cannot get over the movement of the joint with them.




I thought the clips were aluminum or steel. Are they tinned copper, or
are yours different from what I see around here?

There are two types of "permanent" PEX fasteners.

The one preferred for house plumbing is a copper ring that requires a
fairly expensive tool to compress the ring smoothly around the pipe.

The other, apparently preferred for lawn sprinkler systems, uses a
stainless ring with an "ear" which is squeezed by a less expensive
crimping tool - it leaves the crimped "ear" sticking out from the
ring.

(Perhaps the copper ring is the preferred technique, but won't stand
up to burial, so the stainless crimp is accepted for that - just my
guess...)


--
Peter Bennett, VE7CEI
peterbb (at) telus.net
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca