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Posted by RicodJour on October 31, 2009, 5:11 pm
> > > > On Oct 31, 12:52=A0pm, "hr(bob) hofm...@att.net" <hrhofm...@att.net=
> > > > wrote:
> > > > > > Joe wrote:
> > > > > > > I am trying to reroute my upstairs bathroom pipes away from t=
he
> > > > > > > exterior wall (actually an enclosed space behind a kneewall).
> > > > > > > They currently run in an inside (room dividing) wall until th=
ey hit
> > > > > > > the rear wall, behind which is the "crawlspace" open to the r=
afters
> > > > > > > and such. The pipes froze once back there, and its a horrible=
place to
> > > > > > > work in (mice love it) so I want the pipes out of there. Anyw=
ay they
> > > > > > > turn that corner and then branch in the "crawl space" to the =
toilet
> > > > > > > and bathtub. Below this bathroom and crawl space there is a f=
alse
> > > > > > > ceiling, that I would like to run the pipes through instead.
> > > > > > > But the only way to do that is to drop them straight down ins=
ide that
> > > > > > > interior wall until they clear the joists below, then running=
them
> > > > > > > under those joists above the false ceiling to where they need=
to go.
> > > > > > > Going through the joists would be preferable, but I cant see =
how it
> > > > > > > can be done-with 16" centers I dont see how to drill through =
them. But
> > > > > > > the hardest part of all is just getting the pipes down to whe=
re I can
> > > > > > > see them and work with them. Directly below the wall they are=
in,
> > > > > > > there is an extension of that wall into the upper foot and ha=
lf of the
> > > > > > > lower level. This forms one "side" that the false ceiling is =
hung
> > > > > > > from. Its like they knocked out a wall and left just the uppe=
r
> > > > > > > portion. Does this make any sense? Its hard to describe. But =
I just
> > > > > > > cant see how I can get the pipes down through that so they ar=
e below
> > > > > > > joist level, without demolishing part of that wall so I can s=
ee wtf
> > > > > > > I'm doing. Any ideas? I'd sure like to avoid calling a plumbe=
r but I
> > > > > > > may have to...
> > > > > > Hi,
> > > > > > How about insulating the space/pipe with spray foam?- Hide quot=
ed text -
> > > > > > - Show quoted text -
> > > > > Sounds like a lot cheaper and easier solution. =A0They even have
> > > > > extender poles so you can put a spray can at the end of a 4' pole=
and
> > > > > control it by your hand to reach into spaces that you can't get
> > > > > directly to. =A0Paint stores carry them, but anything that has a
> > > > > standard top will fit into these extender poles. =A0If you can ge=
t
> > > > > within 4' of where you need to spray the insulation, the foam in =
a can
> > > > > is great. =A0Don't get the super expanding foam though, as it rea=
lly has
> > > > > a lot of force when it expands and it might bend/break/crack a wa=
ll.
> > > > I spose I should elaborate on the space...its the space formed by t=
he
> > > > narrower second floor and having a steep pitched roof. The space is
> > > > quite large. The roof is insulated, but probably not insulated well
> > > > enough. Thats another problem but not one i can tackle at the momen=
t.
> > > > If my heat goes out, any pipes in there are at risk of freezing
> > > > because its the coldest part of my house, even if they are extra
> > > > insulated. It goes to 40 below here and I dont think pipes in outsi=
de
> > > > walls are even legal, or at the very least not recommended...I do n=
ot
> > > > want another broken pipe....
> > > Define pipe. If you are talking about copper, you might want to look
> > > into PEX. =A0If you have a run of PEX without any fittings it can fre=
eze
> > > without damaging it. =A0The PEX plastic memory will return the tubing=
to
> > > its original size, and it has more than enough stretchability to
> > > accommodate freezing water. =A0Of course you won't have water while t=
he
> > > pipe is frozen, but you also won't have burst pipe, flooding and
> > > repair work.
> > > R
> > Well I was planning to use PVC for the reroute, but existing pipes are
> > copper.
> > Perhaps I havent emphasized this part enough: I really dont want to
> > work in that space. Its nasty nasty nasty from all the rodents that
> > have lived there for 3 years since this was built, and I have to
> > slither in on my belly. I really want to have the pipes go elsewhere
> > so I never ever (ever!) have to go in there again.
But a Tyvek coverall with hood, tape up the arm and leg openings and
wear a mask and googles. You'll feel protected and you won't have to
be down there more than a short while.
> But having said that, if I were to run the pipes through there again
> for lack of other practical options I could minimize my time in there
> by running a long line of pex. In fact I might not have to go in any
> farther than my head and shoulders. =A0So that might work...
Google Sharkbite fittings and PEX. You can fish a PEX run like you
would fish a large gauge electric cable. With either you don't want
to beat up the outside, but it will bend to follow your fishtape or
whatever you're using to pull it through.
R
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> > > > wrote:
> > > > > > Joe wrote:
> > > > > > > I am trying to reroute my upstairs bathroom pipes away from t=