[C320-list] Cracking thru hull hoses

[Jeff Hare]

When I purchased a new chunk of hose for the raw water intake, there was
quite a difference in the amount of flexibility even though both were
similar Trident wire reinforced hoses.  When I installed the last intake
hose it just happened that the Trident painted Label was facing up and on
the outside radius of the bend.  So, when it started developing cracks, the
cracks were easy to see as breaks in the Trident painted label.  So, I just
put the new one on in the same way.  I think the old hose was installed in
2007, so that's pretty old for a hose with this sharp a bend.

Good call, It didn't occur to me that the pump and thru-hull might be
different sizes.  The hose to the pump "seems" fine but seems to be getting
a bit stiff also, so good call to check the size.  If we keep the boat,
we'll replace that next season for sure.

-Jeff

-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf
Of Robert Sloat
Sent: Thursday, May 29, 2014 10:24 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Cracking thru hull hoses

Jeff-I have hull 894 and checked my maintenance book after your note.  I
noticed a little cracking and hardening of the thru hull to raw water
strainer and strainer to engine raw water pump.  They were replaced in 2009
during their  8th season.  They are different sizes.  The one from the thru
hull is 3/4" and the one to the water pump is 5/8" I believe, but would
recommend checking IDs before getting new ones.
On May 24, 2014, at 6:29 PM, Jeff Hare <Catalina at thehares.com> wrote:

> Hello,
>  
> Interesting find this spring.  Our hull is #809  (2001 model year).
> 
>   When I was inspecting hoses this year, I noticed that several of them
(raw water intake, galley sink drain and the macerator thru-hull hoses all
had cracking near the thru hull fitting that I could see by bending the
hoses slightly and using a light.
> 
> I was running the engine on land using my winterizing port and a bucket to
feed water into the system.  After shutting off the engine I noticed that
water left in the line was leaking out of some tiny cracks in the small
portion of raw water intake hose connected to the thru-hull.   So, I got a
replacement wire reinforced hose.  Taking the old hose off, and bending it a
bit, it simple broke wide open.  Glad I noticed this.
> 
> Galley sink.  The galley drain hose is similarly brittle but was not as
bad but I'm replacing that now.  Same exact problem with the macerator
thru-hull hose.  I have a plan to replace all the thru-hull connected
factory rubber hoses now.  The rubber is drying out for some reason.
> 
> So.  Check all your thru-hull hoses carefully.  If they feel dry or
unusually stiff, consider just replacing them pro-actively, rather than wait
for them to ruin your trip, cause that's when they'll fail of course.  :-)
> 
> -Jeff  Hare
> Woodbine II #809

Bob Sloat
Savannah 894 (2002)
Waukegan Harbor, IL