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Catalina/Capri 25/250 Sailor's Forums

Catalina 25 Specific Forum

Bilge Pump Installation

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montl
1st Mate

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Canada
30 Posts

Initially Posted - 04/25/2005 : 11:42:36

I would like to install a bilge pump on my 1980 Catalina 25 swing keel. I think the obvious spot for it would be near the winch cable epoxyed to the floor of the bilge.
My question is routing the pipe to the through hull. I am thinking of routing it through the lazerette and up to a spot on the transom beside the motor bracket (port side motor on my boat).
It appears the transom is very thick in that area (possibly 2").
Has anyone else done this job, and where do you route the outlet to?
It would be much easier to put the outlet where the hull is not as thick.

Lloyd Montgomery
Morning Star #1838
Lake Diefenbaker, SK., Canada

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 04/25/2005 : 12:39:27

LLoyd,

My manual bilge pump thru-hull is located on the transom at a point halfway between the port motor mount and the rudder, and it is about level with the bottom of the mount.

It is in the general area as [url="http://www.catalina25-250.org/manbro/pictures/pc11.gif"]as shown in the C25 Parts Manual.[/url]

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montl
1st Mate

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Canada
30 Posts

Response Posted - 04/25/2005 : 13:09:05

Don;
Thanks for the reply. I looked at that spot, but considered it a bit low. Was concerned that perhaps it may allow water to come in if there were large following waves. The hull thickness is certainly thinner there, so the installation would be simple.

LLoyd

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Sid
Navigator

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129 Posts

Response Posted - 04/25/2005 : 15:53:37

I'm cosidering tying in my bilge discharge with the cockpit drains (I have the vertical drains) and using a loop or check valve to prevent backflow. Anyone know the id of the hose that connects the upper and lower cockpit drain through hulls?
Thanks,
Sid

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 04/25/2005 : 17:42:38

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by montl
 Don;
Thanks for the reply. I looked at that spot, but considered it a bit low. Was concerned that perhaps it may allow water to come in if there were large following waves. The hull thickness is certainly thinner there, so the installation would be simple.

LLoyd
<hr height="1" noshade id="quote"></blockquote id="quote">

Lloyd,

The hose attached to my thru-hull on the transom travels upward to the manual bilge pump which is located just below cockpit seat level. This arrangement would prevent water from easily entering the bilge since it has to go uphill first.

If you were to put your hose at a higher elevation than your thru-hull, I don't think you'd have to worry about following waves putting water inside the boat.

Just a thought.

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CB
1st Mate

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54 Posts

Response Posted - 04/25/2005 : 18:39:02

Lloyd,
That's exactly how I mounted mine, it's just starboard of the swing keel cable area.
Rather than epoxy the bilge pump directly to the floor, I epoxied some homemade wood shims (pressure treated) to the floor of the bilge, then screwed the pump to the wood in case I ever had to replace/repair it. Make sure and use short screws!!!!
I ran the hose back to the same area of the manual bilge pump thru hull, and drilled in another one right next to the original.
Good luck.
Chris

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montl
1st Mate

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Canada
30 Posts

Response Posted - 04/30/2005 : 14:44:44

Thanks for all the help;
I think I am ready to get the job done now.

Lloyd

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gnorgan
Admiral

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USA
563 Posts

Response Posted - 05/01/2005 : 15:13:54

I've had my bilge pump just sitting in the bottom of our boat for about 4 months now....other projects took precedence. Awhile ago I moved my tiller pilot connector from inside the gas locker to inside the coaming pocket which left a hole in the locker at the aft, top edge, covered by duct tape. Last time down I decided what that hole was going to be used for. Installing a bilge hose exit port. As I envision it, the automatic bilge pump goes on and pumps water back and up (operative term is "UP") to this exit port location and the water drains down inside the locker, under the lid and out into the cockpit area and back to the normal drain scuppers. Should work just fine in our 1989!!!
BTW, the gas locker in our model is completely isolated from the interior and no water can get into the interior.
Maybe you might find a similar location which puts the exit port far above the waterline??

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georgiaboater
1st Mate

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USA
72 Posts

Response Posted - 05/01/2005 : 21:58:42

I am also considering a better water exit route. Thought about using the same hose as the ole manual pump since it doesn't really work anymore on my 78....will the water go "up" and through the manual system?

Or perhaps take the hose off on each side of the manual...hook in a connector and since it is at a higer level...water will not flow in from outside the boat but will flow the other way...i.e. presher flow of the electirc bilge.

Perhaps someone with knowledge of the old manual bilge and or hose through it can enlighten me.

Thanks

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matsche
Captain

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USA
280 Posts

Response Posted - 05/02/2005 : 08:26:44

Marshall: If your manual pump isn't working, you really should consider fixing it. An electric pump will only be good as the remaining charge in your battery.

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Champipple
Master Marine Consultant

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USA
6855 Posts

Response Posted - 05/02/2005 : 10:49:06

We have 2 - The first is on the port side in the settee just forward in the galley. When the boat was initially on the cradle way back when, this was the low point and almost everything made its way there. After we found all but a couple the deck leaks and actually had the boat in the water, the hot spot was right behind the stairs – so we put one there. (we didn’t know about the rubrail leakeage) at the time…. The former’s through hull fitting is about a ¼ up the waterline. The latter is right out the back of the boat – about where the ladder used to be.

I agree with the comment regarding the manual pump. Electric is nice, but you need a backup when the batteries fail. We have a hand held and the mounted whale. Also - along the same lines with the electric, the automatic pump is also only as good as the batteries. except if there's a problem with that one, you can burn out the batteries without even leaving the dock.....

Edited by - Champipple on 05/02/2005 10:56:47

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