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Catalina/Capri 25/250 Sailor's Forums

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Sink drains

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Voyager
Master Marine Consultant

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USA
5377 Posts

Initially Posted - 10/18/2010 : 12:39:33

Both my sink drains leak. A lot.

I don't know what brand they are, but there's a plastic cup-shaped piece on the bottom that has a set-screw going through to attach it to the bottom of the sink. This part leaks. There's also a hose that comes out of the side of the unit. This is solid.

Does CD sell a replacement? Is it a simple unit to replace? I've taken the drain apart, but there doesn't seem to be any way to replace seals or parts to stop it leaking.

Bruce Ross
Passage ~ SR-FK ~ C25 #5032

Port Captain � Milford, CT

Edited by - on

John Russell
Master Marine Consultant

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USA
3444 Posts

Response Posted - 10/18/2010 : 13:51:15

How about plumber's putty? That's what seals the drains in your sinks and bathtubs at home. The part is seated in a "gasket" made of the stuff and tightened from there. Since there really isn't much pressure, a little silicone caulk?

I wonder if it might be worth a trip to the local Home Depot to browse through their plumbing aisles. They seem to have something of every shape and size.

Edited by - on

two port feet
1st Mate

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77 Posts

Response Posted - 10/18/2010 : 18:28:23

My sink drain also leaked. But I wouldn’t recommend finding the leak the way I did. We lunched our C25 at Anacortes Wa after tailoring 850 miles from northern Ca. after lunching I motored over to our assigned slip and tided off the boat. I then drove back the motel picked up the wife hopefully to asset in stepping the mast. On retuning I found the boat filled with water almost up the seat cushions. The hose from the sink drain had disconnected and with the seacock left opened it just kept filling the cabin with sea water. “I found the leek“. I hope to never lunch a boat without closing all the seacock’s again. By the way the repair shop where we did the repairs made me use a heaver drain hose. Because the through hole is blow the water line?.

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Voyager
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5377 Posts

Response Posted - 10/18/2010 : 18:51:19

TPF,
Whoa! Now THAT'S A LEAK! It could have sunk your boat.
Mine's a whole lot less of a leak.
I have checked the hoses and they are solid, and are solidly connected to the through hull fittings with two hose clamps on each connection.

I have also plugged the cooler drain on the aft sink. That has been nothing but trouble.

John,
I have never used plumber's putty, but will see whether there's anyway to use it in this case. I imagine I can stick a wad all over the bottom to try and seal it.

I'm fine with electricity, woodworking I can handle, mechanical things are no problem, but for me plumbing is incomprehensible. I can connect hose, sweat a fitting, wrap with teflon tape, install an O-ring, and somehow stuff just leaks.

Edited by - on

redviking
Master Marine Consultant

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1771 Posts

Response Posted - 10/19/2010 : 04:43:36

Sounds like a job for 4200... Get mad enough and you'll 5200 it...

sten

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Davy J
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USA
1511 Posts

Response Posted - 10/19/2010 : 05:11:13

I replaced my galley sink drain in the spring. I picked up a replacement at home depot, I think it was called a Bar drain. I dont recall a set screw though. If I remember correctly, it had large nut to hold drain to basin, and also had a second one at the base with a plastic washer. The washer is placed between drain and the plastic funnel that connected to the hose. The most difficult thing about replacing it was having to tighten these from underneath the sink cabinet. Also, needed plumbers putty between the sink basin and drain.

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Stinkpotter
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Djibouti
9081 Posts

Response Posted - 10/19/2010 : 07:36:09

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by two port feet
 ...By the way the repair shop where we did the repairs made me use a heaver drain hose. Because the through hole is blow the water line?.
<hr height="1" noshade id="quote"></blockquote id="quote">Sometimes repair guys don't quite get it... There's absolutely no pressure in that hose, regardless of the waterline. You want a hose that can be tightly clamped to the seacock--with two stainless hose-clamps. (If there is ever a time to check new hardware with a magnet, this is it!) I'd worry that if the hose is too heavy, the clamps might not be able to create as tight a seal.

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islander
Master Marine Consultant

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USA
4024 Posts

Response Posted - 10/19/2010 : 14:15:52

<blockquote id="quote">quote:<hr height="1" noshade id="quote">I have never used plumber's putty, but will see whether there's anyway to use it in this case. I imagine I can stick a wad all over the bottom to try and seal it<hr height="1" noshade id="quote"></blockquote id="quote">
It won't work. Plumber's putty is designed to be sandwiched between to solid flanges, Not as a band-aid. Go to Home Depot and get the drain for a bar sink, Throw the old one away and do it right once. Put the plumbers putty on the flange of the basket, Push the basket down into the sink hole, Put rubber gasket(if there is one) and nut on bottom and tighten.

Edited by - islander on 10/19/2010 14:38:58

John Russell
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3444 Posts

Response Posted - 10/19/2010 : 14:30:54

What Scott said.

Edited by - on

Voyager
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5377 Posts

Response Posted - 10/19/2010 : 19:31:29

Scott
You're a great explainer. Now it is just as clear as mud

No really, I get it!

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redeye
Master Marine Consultant

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3476 Posts

Response Posted - 10/20/2010 : 04:03:46

I orded CDs assembly and the cup did not fit. I think the way to go is remove the assembly and go to a plumbers supply.

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redeye
Master Marine Consultant

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3476 Posts

Response Posted - 10/20/2010 : 04:35:03

Mine was leakin from plastic cracked and dried out

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redeye
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3476 Posts

Response Posted - 10/20/2010 : 04:42:09

After i finish a plastic plumbing job i go back and seal the pipes with a liquid aircraft gasket

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Prospector
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Canada
3159 Posts

Response Posted - 10/20/2010 : 06:27:50

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by redviking
 Sounds like a job for 4200... Get mad enough and you'll 5200 it...

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

Sten I know you know this already, and probably posted that as a joke, but for others...

5200 does not have any more SEALING power than 4200. It is supposed to have more HOLDING power. The ability to hold a surface is different than the ability to seal. If you are looking for a better seal, all that switching to 5200 will do is make it more difficult to clean up and move to another sealant when you decide to try something else.

I am not sure whether either 4200 or 5200 are intended for plumbing applications. I thought they were intended to bond between flat surfaces (the flange on a stanction to the deck, for instance). I tend to agree with our resident stinkpotter on the fix for this one - go with hoseclamps.

Edited by - on

Stinkpotter
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Djibouti
9081 Posts

Response Posted - 10/20/2010 : 06:52:26

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Prospector
 [quote]Originally posted by redviking
 ...I tend to agree with our resident stinkpotter on the fix for this one - go with hoseclamps.<hr height="1" noshade id="quote"></blockquote id="quote">Let's not confuse the problems here--my "clamp" remarks were to "two port feet" about his problem at the seacock, not to Bruce and his sink leak (in my old boat).

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klassi1
1st Mate

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88 Posts

Response Posted - 10/20/2010 : 07:21:10

What I don't understand is why the gasket assembly (a weak point in the whole deal) isn't above the waterline. At least on the CP 25 it isn't. Mine dry rotted and what started out as a slow dribble progressed to a steady drip and eventually into a very steady flow. Glad I was on the boat when it decided to give way. And to top it all off, the seacock was rusted in the open position. A semi permanent fix is in and the seacock will be replaced or the thru hull permanently sealed went we pull the boat this winter.

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islander
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Response Posted - 10/20/2010 : 14:04:36

<blockquote id="quote">quote:<hr height="1" noshade id="quote">What I don't understand is why the gasket assembly (a weak point in the whole deal) isn't above the waterline<hr height="1" noshade id="quote"></blockquote id="quote">
I think everyone is a little confused as to where Bruce's leak is. His leak is under the sink, Not down by the sea cock in the hull. His leak is above the waterline and only drips when he puts water in the sink.

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Prospector
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3159 Posts

Response Posted - 10/20/2010 : 16:03:01

Oh, well, I have an easy solution for that.

Fill the sink with junk and there will be no room for water in it.

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Voyager
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5377 Posts

Response Posted - 10/20/2010 : 18:06:32

Scott -
BINGO!

Yes, the sink drain leaks. It is well above waterline (except when extreme heeling) so I'm not too concerned about being flooded.
Problem is it leaks into my drawer! I keep my flares in that drawer, and they're still in the plastic package.

Chris - the aft sink in the galley leaks badly, and it has become my cellphone, wallet, keys, handheld VHF and waterbottle holder.

I use the head sink (which leaks a lot less) for washing up and other "wet" uses. Once I finish, I wipe off the top area and underneath, inside the cabinet. I keep a few toiletry items, cleaning supplies and adult beverage bottles in the cabinet, so nothing is reall affected. I'd just like to get it to quit leaking.

I will go to The Home store to get a pair of those plastic bar sink drains that Scott described, and some putty. If I really need some kind of sealer, I might try polysulfide first. If that doesn't work I'll try some stronger stuff.

Edited by - on

Prospector
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Canada
3159 Posts

Response Posted - 10/21/2010 : 08:59:28

We don't have a sink in the head - our boat is the more economical "hanging locker" option, which I am good with. our sink is filled with a variety of things which include wallets, keys, spare winch handles, old race instructions, a fork, teh Marinco adapter that allows us to plug in to a normal extension cord, some old sunglasses, a bottle of suntan lotion, a protest flag (red towel with shower cutain rings sewn in), a bottle of aspirin, and possibly $5 -10 for a quick lunch in case I actually sail someplace with food.

Contents may vary dependin gon which tack I'm on and how strong the wind is. Oh, and our taps don't work, the cork thing in the bottom of the spout let go long ago.

On the upside, I have never had the sink leak. On the downside, I have never put water in it. We have a plastic tote that we use for dishes etc. and drink bottled or filtered water on board depending on where we are. Often we fill a jug at home.

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islander
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USA
4024 Posts

Response Posted - 10/21/2010 : 13:44:31

Bruce, Thinking about this a little more... It really sounds like what is leaking is the tail piece. This is the part under the sink that attachés to the metal sink basket then the hose attachés to that. It is probably made of plastic and over the years has gotten brittle an cracked. If this is the case then you don't need the basket from home depot. You just need a new tail piece. The tail piece can be found at any RV store or maybe a plumbing supply. If you can wait I will look at mine this Sat. and see how its put together.

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Voyager
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5377 Posts

Response Posted - 10/22/2010 : 15:08:26

Scott,
I appreciate it.
I just took the picture of the bottom section of the drain. Its a little fuzzy but should do.

It seems that most of the leaking takes place with the thumb-screw located in the bottom. It looks like a black smudge in the photo.

It may be possible to seal the drain using a replacement screw with a gasket of some sort placed under it.

Edited by - Voyager on 10/22/2010 15:09:45

islander
Master Marine Consultant

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4024 Posts

Response Posted - 10/24/2010 : 14:22:17

Bruce, I looked at mine on Sat. I'm afraid to tell you that they are not the same. Mine is made of plastic but more of a funnel shape and the hose is attached vertically at the bottom. I don't have any thumb screws. Best suggestion I can offer is to take the screw out and see if there is a washer that has deteriorated. I found this http://www.easternmarine.com/Camco-Camper-Drain-Trap-37262/ Looks similar to yours.

Edited by - islander on 10/24/2010 14:39:14

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