Stern Exit Holes

Feb 15, 2014
180
Catalina 30 Bremerton, WA
In the picture with the yellow wire, what is the slightly lower exit hole on the right? It has a 1.5 i.d. hose on it that goes into the port sail locker where it's roughly cut off. The other exit holes are accounted for: Engine exhaust, cockpit drains. Anybody know? C30 1978.
 

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Jun 6, 2006
6,990
currently boatless wishing Harrington Harbor North, MD
Looks like exhaust hose so thinking the PO took the genset with him???
 
Feb 15, 2014
180
Catalina 30 Bremerton, WA
It's got that white smooth really heavy/strong
hose on it, so I don't think it's an exhaust.
It comes into the sail locker over a foot
from the bottom, so probably not a
passive drain. Thanks for the responses.

This picture shows where it unceremoniously ends.
 

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Feb 15, 2014
180
Catalina 30 Bremerton, WA
No evidence of sealed propane locker anywhere.
Could be just for airflow. Seems that any stuff
put in that locker could easily lean against it and
shut it off. It's also cut off roughly, like the PO tore
something out.
PRT? That'd be really awkward...
Thanks for the guesses.
 
Nov 7, 2012
678
1978 Catalina 30 Wilbur-by-the-Sea
I have 5 fitting on our 78'.

2 lower glassed in are the cockpit scuppers.

Starboard 1.5" transom fitting goes to auto bilge pump

Centerline 1.5" exhaust from motor.

Port 1.5" manual bilge pump. The hose runs from the pump located inside of the forward bulkhead of the sail locker roughly near engine control panel (you have to insert handle and pump it by reaching into the locker).

On ours the hose runs from bilge to pump then from pump aft to fitting via under the quarter berth.

A previous owner had put a y valve on this and was using the pump to drain the poo holding tank.

My guess is something similar to this is what happened in the past to your boat. That white hose is a waste type hose.

I put in some new bilge pump hose and it works as designed, I do want to find a better location for the pump. I like were yours is, hmmm.

Our exhaust hose runs thru that hole as we have a flapper in the sail locker.
 
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Feb 15, 2014
180
Catalina 30 Bremerton, WA
The Garbone:

I think you nailed it. It was probably the
holding discharge. I have a C-head. The
starboard cockpit drain has 2 T's into it for
the bilge pumps. Don't really like that
set-up, so I may change them to discharge
out that now extra hole. Tough to work
in that space through that little hole, though.
Thanks for the responses.
 

BillyK

.
Jan 24, 2010
502
Catalina 310 Ocean City, NJ
The hose looks like a sewage line. Maybe it was the macerator pumpout line? On my 1990 30' we have two bilge hoses that combine in the port aft locker. How are your bilge lines run?
 
Feb 15, 2014
180
Catalina 30 Bremerton, WA
BillyK:

Yup. That's what it was. I can't imagine all the
wiring and extra stuff there used to be with a
macerator and holding tank and other stuff. I've
gotten rid of lots of extraneous stuff. That hose
was just sticking out into space. I've since
capped it off but it's still there. Next haulout
I'll cap the thruhull.

Bilge lines T into the cockpit drain lines.
 

mortyd

.
Dec 11, 2004
952
Catalina 30 easy living
how sure are you guys that you have a holding tank vent above the waterline and if it came from the factory like that? my '91 sure doesn't.
 
Jan 18, 2016
782
Catalina 387 Dana Point
Vent; When did Catalina quit using the 'hole in the stanchion' type of vent in the '30?

I definitely have a vent, and it's right through the center of the stanchion. Easy to see the vent hose going up through the 'vanity' top.
 

BillyK

.
Jan 24, 2010
502
Catalina 310 Ocean City, NJ
My 90 has the vent through the stanchion for the holding tank on the port side. my water tank vents to a stanchion on the starboard side.
 
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