[C320-list] Under sink leak

[David Wellerstein via C320-list]

Hey all..quick question: I find that one of my sinks (starboard side) drips a bit into the utensil drawer when I run water with the seacock closed. So I suspect water is backing into the hose and dripping somewhere. It’s so hard to find a water drip!

I’d like to replace the hose and clamps with better hoses and whale connectors. Easy job? Is there a pre-built hose and connectors perhaps?

Thanks as always!

David
C320 #118 “Dream Catcher”

David Wellerstein | dwel...@mac.com | 925.301.6581 (m)

[Dan Winsor via C320-list]

Dave, the utensil drawer is short, correct? Therefore it doesnt reach
beyond the sink where the hoses are located. More likely your source is the
drain connection or perhaps a sink puncture from a knife drifting around,
(happened to me)
Suggest shutting the sink hull valve, removing untensil drawer, placing dry
paper towel atop next drawer down, and watching for leak. If its the drain
ass'y, ez to remove pipe from bottom of sink and renew seal washer. If it's
from sink itself. 3M 5200 worked for me.
Dan Winsor
Lucky Devil #109

[David Wellerstein via C320-list]

Thanks Dan.

Yes, the top drawer is short and the water is coming from the drain assembly OR from the drain basket itself (which is not centered in the sink hole by the way). It’s landing in the second drawer down. I’ve removed the entire cabinet before to swap out the accumulator and to fix a broken quick connect with a new whale.

I can basically redo the drains on both sides (hope they come out easily), re-apply plumbers putty and put in new hoses and clamps. I’m sure that will fix the leak. In any case, it shouldn’t leak just because the sink drain seacock is closed, yes?

—David

> On Jun 16, 2025, at 10:04 AM, Dan Winsor <dandw...@gmail.com> wrote:
>
> Dave, the utensil drawer is short, correct? Therefore it doesnt reach beyond the sink where the hoses are located. More likely your source is the drain connection or perhaps a sink puncture from a knife drifting around, (happened to me)
> Suggest shutting the sink hull valve, removing untensil drawer, placing dry paper towel atop next drawer down, and watching for leak. If its the drain ass'y, ez to remove pipe from bottom of sink and renew seal washer. If it's from sink itself. 3M 5200 worked for me.
> Dan Winsor
> Lucky Devil #109
>

> On Mon, Jun 16, 2025, 17:38 David Wellerstein via C320-list <c320...@lists.catalina320.com <mailto:c320...@lists.catalina320.com>> wrote:
>> Hey all..quick question: I find that one of my sinks (starboard side) drips a bit into the utensil drawer when I run water with the seacock closed. So I suspect water is backing into the hose and dripping somewhere. It’s so hard to find a water drip!
>>
>> I’d like to replace the hose and clamps with better hoses and whale connectors. Easy job? Is there a pre-built hose and connectors perhaps?
>>
>> Thanks as always!
>>
>> David
>> C320 #118 “Dream Catcher”
>>

>> David Wellerstein | dwel...@mac.com <mailto:dwel...@mac.com> | 925.301.6581 (m)
>>

[Aaron Laskowski via C320-list]

I literally just had this exact same issue. For me, it was the right sink drain assembly had sheared in half, causing leakage into the drawers and wood expansion. I was able to source replacement parts from Catalina Direct: https://www.catalinadirect.com/shop-by-boat/other-catalinas/interior/plumbing/sinks-drains/sink-drain-assembly-welbow-plastic-flange/

Suggest you do both at once, as my left sink drain assembly also sheared, as I was replacing the right one.

[David Wellerstein via C320-list]

Hi Aaron!

Great minds…I literally just had two of the drain assemblies shipped from Catalina Direct today! I will install them soon as my left sink appears to be leak free so we can just avoid the right one (for now). Hopefully just a wrench or two and some plumber’s putty is all that I need for the job (and some Advil for my back).

Thanks!

—David

> On Jun 23, 2025, at 1:46 PM, Aaron Laskowski <aaron.l...@outlook.com> wrote:
>
> I literally just had this exact same issue. For me, it was the right sink drain assembly had sheared in half, causing leakage into the drawers and wood expansion. I was able to source replacement parts from Catalina Direct: https://www.catalinadirect.com/shop-by-boat/other-catalinas/interior/plumbing/sinks-drains/sink-drain-assembly-welbow-plastic-flange/
>
> Suggest you do both at once, as my left sink drain assembly also sheared, as I was replacing the right one.
>
> -----Original Message-----
> From: C320-list <c320-lis...@lists.catalina320.com <mailto:c320-lis...@lists.catalina320.com>> On Behalf Of David Wellerstein via C320-list
> Sent: Monday, June 16, 2025 2:11 PM
> To: Dan Winsor <dandw...@gmail.com <mailto:dandw...@gmail.com>>
> Cc: David Wellerstein <dwel...@mac.com <mailto:dwel...@mac.com>>; C320...@catalina320.com <mailto:C320...@catalina320.com>
> Subject: Re: [C320-list] Under sink leak
>
> Thanks Dan.
>
> Yes, the top drawer is short and the water is coming from the drain assembly OR from the drain basket itself (which is not centered in the sink hole by the way). It’s landing in the second drawer down. I’ve removed the entire cabinet before to swap out the accumulator and to fix a broken quick connect with a new whale.
>
> I can basically redo the drains on both sides (hope they come out easily), re-apply plumbers putty and put in new hoses and clamps. I’m sure that will fix the leak. In any case, it shouldn’t leak just because the sink drain seacock is closed, yes?
>
> —David
>
>> On Jun 16, 2025, at 10:04 AM, Dan Winsor <dandw...@gmail.com> wrote:
>>
>> Dave, the utensil drawer is short, correct? Therefore it doesnt reach
>> beyond the sink where the hoses are located. More likely your source is the drain connection or perhaps a sink puncture from a knife drifting around, (happened to me) Suggest shutting the sink hull valve, removing untensil drawer, placing dry paper towel atop next drawer down, and watching for leak. If its the drain ass'y, ez to remove pipe from bottom of sink and renew seal washer. If it's from sink itself. 3M 5200 worked for me.
>> Dan Winsor
>> Lucky Devil #109
>>

>> On Mon, Jun 16, 2025, 17:38 David Wellerstein via C320-list <c320...@lists.catalina320.com <mailto:c320...@lists.catalina320.com> <mailto:c320...@lists.catalina320.com>> wrote:
>>> Hey all..quick question: I find that one of my sinks (starboard side) drips a bit into the utensil drawer when I run water with the seacock closed. So I suspect water is backing into the hose and dripping somewhere. It’s so hard to find a water drip!
>>>
>>> I’d like to replace the hose and clamps with better hoses and whale connectors. Easy job? Is there a pre-built hose and connectors perhaps?
>>>
>>> Thanks as always!
>>>
>>> David
>>> C320 #118 “Dream Catcher”
>>>

>>> David Wellerstein | dwel...@mac.com <mailto:dwel...@mac.com> <mailto:dwel...@mac.com> |
>>> 925.301.6581 (m)

[John Bennett via C320-list]

My port sink drain also sheared off. The replacement part from Catalina
Direct worked for me also.

However, in order to get it to fit with the existing horizontal hose
(between the two drains), I had to cut off one barb (of 3) below the elbow.

Removing the old drain was difficult, and a two-person job - one underneath
with channel lock pliers, the other above attempting to keep the top
portion from spinning without breaking it. Getting all the pieces of the
new drain tightened and inserted into the hose, without breaking the other
drain, was similarly entertaining!

I recommend closing the seacock while you do this, as you will almost
certainly put some stress on the vertical hose!

I was glad I didn't have to do the starboard one with the drawers in the
way...

-JB
Brandywine - #486