[C320-list] Vent and vent hose replacement process?

[Chris Burti]

If you stick a short piece of dowel in the ends of
both the old hose and the new, you should be able to
pull the new through when the old is pulled out. This
will eliminate the routing issue. If the dowel is
large enough to be really tight, you can eliminate the
need for a clamp and avoid its hanging up on corners
and edges.

--- Bill Culbertson <billculb_a2 at yahoo.com> wrote:

> Chris,
> 
> I replaced the vent host this summer.  It's quite
> easy and I wish I'd done it years ago.  I finally
> decided that my head smell must be the vent hose
> from back when, as a 1st year newbie, I overfilled
> the tank and you guessed it - YUCK.  Spent about $20
> for 10' of hose and it turns out it took about 6'. 
> I can't swear about the 6' so if I were you, I'd buy
> 7' to be sure.
> 
> Don't take off the mirror.  That is complicated by
> the 2 anti-siphon hoses that would have to be
> removed.  Instead access from the hanging locker in
> the aft cabin.
> 
> In the hanging locker, take off the thin wood panel
> which supplies the "back wall" of the hanging locker
> (between the hanging locker and  the head).  This is
> screwed in with four screws to wood blocks glued to
> the hull (outboard) and head wall (inboard).  Once
> removed, you'll see the whole arrangement very
> clearly.  Now go to the head and remove the screws
> holding the medicine cabinet to the wall.  I know, I
> know - I said don't remove this cabinet and you
> don't.  But once unscrewed from the head wall, you
> can pull it forward toward the head door (toward the
> boat centerline).  You pull it forward 2-4" -
> whatever it will do WITHOUT detaching the
> anti-siphon hoses.
> 
> Now back to the hanging locker.  With the wall
> removed and the medicine cabinet pulled inboard,
> there is quite a bit of room to access the head vent
> hose as it attached to the fitting on the hull. 
> Undo the hose clamps and detach it from the fitting.
>  Detaching the other end at the holding tank is easy
> as it is on  the top of the tank easily accessible
> from the starboard settee with cushions gone.  Once
> detached from the holding tank, take note of exactly
> how it leaves the tanks and heads outboard relative
> to the various obstructions on top of the tank. 
> That's the only thing that you'll wish you'd noted
> before you pulled the old hose out.  Then just pull
> the hose out.
> 
> For the new hose, I fed it in from the holding tank
> following the path I noted that the old hose took. 
> Push it horizontally until you've fed 4' or so. 
> Then return to the hanging locker with a flashlight
> or headlamp (what I use).  You can reach in and grab
> the free end.  Pull it upwards following the path
> the old hose took.  I remember there was a loose
> cable tie that it went through around it along with
> one or more other hoses.  I think one was the large
> diameter pumpout hose on its way up to the deck
> fitting.  I DIDN'T cut that cable tie to remove the
> old vent hose.  I just pushed the old hose down out
> of it.  So I fed the new hose up through the
> original cable tie and toward the hull fitting.  
> 
> I hose clamped to the hull fitting 1st.   I used
> dish soap to make it easy to put on and then
> attached the hose clamp.  Then I went back to the
> settee and the holding tank.  I fiddled with the
> hose back and forth horizontally to find out the
> max. hose length I could keep and still have it
> cleanly reach (and not overshoot) the holding tank
> fitting.  Then I cut the hose to that length, soaped
> it up, attached the hose clamp and it was a done
> deal.
> 
> Like I said, I really wished I had done it a few
> years ago.  I have had absolutely NO odor since.
> 
> I finally got to suspecting the vent hose when I
> noticed that the odor I did smell when it happened
> was strongest in the aft cabin and particularly in
> the hanging locker when I opened the door to the
> locker.    That's how I figured out that this locker
> was an open path to the vent hose in the first
> place.
> 
> I hope  this process works as well for you as it did
> for me.
> 
>  -bill
>  Harmony #859
> 
> 
> 
> ----- Original Message ----
> From: Chris Block ..._/)..._/)
> <cblock at austin.rr.com>
> To: c320-list at catalina320.com
> Sent: Wednesday, September 27, 2006 9:07:43 PM
> Subject: [C320-list] Vent and vent hose replacement
> process?
> 
> 
> I would like to remove and replace my head vent and
> possibly vent hose.  Does anyone have a good written
> process?  How does one get to the fitting?  remove
> the mirror or other bathroom wall parts?  where does
> the other end of the vent hose terminate?  the
> holding tank?  any gotcha's to look out for?
> 
> thanks,
> 
> Chris
> Amore #139
> 
> 
> 


Chris Burti
"Commitment"
Catalina 320, #867, 
Farmville, NC

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