[C320-list] Clearing thru-hull obstruction

[Jon Vez]

Warren,
If you do this, you may run the risk of the water back flushing into the engine-especially if you have a clog at the seacock. Your best bet is to remove the hose at the water pump and use a shop vac to blow out. Another way to do this is connect a short extension hose to the short section of hose at the water strainer so you can keep it above the water line. Another potential reason for your problem is the O-ring on the seacock itself. They can get stiff and cause this type of problem. Unfortunately this was my problem at my macerator seacock on my 320. You can plug from the outside and service the seacock while in the water if this turns out to be your problem. Hope this helps...

Sent from my iPad

On Jun 28, 2013, at 5:21 PM, Warren Updike <wupdike at hotmail.com> wrote:

> Thanks to all who replied. 
> John, I too have a "T" for winterizing. To attach a garden hose I would need
> a hose with two female ends or a modification to allow connection. I looked
> for a Male/Male garden hose adapter but couldn't find one. I'll have to make
> it.
> As for going under, there has to be an easier way.
> 
> Warren & Pattie Updike
> 1994 C320 #62 "Warr De Mar"
> 
> -----Original Message-----
> From: John Meyers [mailto:jcmeyers7 at gmail.com] 
> Sent: Friday, June 28, 2013 2:21 PM
> To: C320-List at catalina320.com
> Subject: Re: [C320-list] Clearing thru-hull obstruction
> 
> Warren,
> 
> How do you go about winterizing? I have a new T in my cooling line for
> sucking in coolant. I could push water back through.
> 
> Or.... how well can you swim and hold your breath?
> 
> John Meyers
> 
> 
> On Fri, Jun 28, 2013 at 2:04 PM, Warren Updike <wupdike at hotmail.com> wrote:
> 
>> Upon last leaving the boat I was unable to close the cooling water 
>> thru-hull fully.  Got it about two thirds.  It seems that something 
>> like a twig is lodged there.
>> 
>> Does anyone have any experience clearing such a thing?  I was thinking 
>> of back-flushing with a hose; but, have to figure a way to do that 
>> without forcing water through the system and filling the muffler.
>> 
>> Any ideas appreciated.
>> 
>> 
>> 
>> Warren & Pattie Updike
>> 
>> 1994 C320 #62 "Warr De Mar"
>> 
>> 
>> 
>> 
> 
>