Dave: please describe the manifold you installed.
From: Dave Godwin via CnC-List
Sent: Saturday, February 02, 2019 7:13 AM
To: cnc-list@cnc-list.com
Cc: Dave Godwin
Subject: Re: Stus-List Replacing Water Lines...
I replaced all of the original grey plastic pipe in our boat. With the
exception of a section where someone (ahem, looks at self…) ran a screw through
it, it was perfectly serviceable, However, since I am replacing the fixtures in
the head and the galley and have adde a transom-mounted cockpit shower I
replaced all of it.
I used 1/2” SeaTech polyethylene tubing and associated fittings. The job was
fairly easy to do and allowed for the building of a simple manifold on the
pressure side of the system for the hot and cold outflows. The best thing that
I did was purchase the pipe cutters to insure a clean, 90-degree cut on the
ends.
Pictures available upon request.
Regards,
Dave Godwin
1982 C&C 37 - Ronin
Reedville - Chesapeake Bay
Ronin’s Overdue Refit
On Feb 2, 2019, at 1:57 AM, sender via CnC-List <cnc-list@cnc-list.com> wrote:
The original grey, opaque plastic pipe that was commonplace in the late 70s &
early 80s was polybutylene.
My understanding is the issue with this material is in residential use it
split open causing a flood, in situations where pressures AND temperatures are
high (180F). It was taken off the market and companies were, and still are
reluctant to make compatible fittings out of liability fears. Having said
that, I've kept the poly-b in my boat as it unlikely to fail since my my water
is only periodically under pressure, its only 40 psi, and it never gets really
hot. if it was in my house, I'd remove it.
Vinyl tubing tends to shrink, yellow and harden up over time.
I'd do 1/4" or 3/8" pex if I was running new, but not sharkbites for
fittings, there are lots of other compression fitting available at lower cost.
Just my $0.02
Eric
On Wed, Jan 30, 2019 at 7:07 AM David via CnC-List <cnc-list@cnc-list.com>
wrote:
I am sure this has been gone over before...so please indulge me.
Replacing, re-designing, water lines in 1981 40-2. Pex is the obvious
choice. Are there less obvious (and have cheaper tools required to install)
choices?
Has anyone improved on the original design? I am thinking of adding
easier accessible manifolds and an additional line for antifreeze and blowing
out water.
Thanks in advance.
David F. Risch, J. D.
Gulf Stream Associates, LLC
(401) 419-4650
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Thanks everyone for supporting this list with your contributions. Each and
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