[C320-list] Anti-fouling question

[Warren Updike]

I had the same questions. I got the following somewhere in my internet
search: Don't use copper-based paint on the depth or speed units. Clean the
depth device (plastic area)with a scotch-bright pad and paint with
transducer paint. Also use transducer paint on the speed device paddle wheel
and internal surfaces.
Personally, I gave up on the speed thing. Here on the Chesapeake, the water
gets so warm in the summer that the critter growth overwhelms the speed
wheel as the recess is just too attractive for them to resist.  Since ours
is the older boat, there is no flap in the transducer tube and the water
inflow is too overwhelming to bother with. I just bagged it. Besides, GPS
SOG is better for my use.  I do give up the calculation of true wind.  I did
find a device that will convert GPS SOG to STW for wind instruments; but,
didn't buy it.  We don't race.

Warren & Pattie Updike
1994 C320 #62 "Warr De Mar"

-----Original Message-----
From: William Ott [mailto:wmo48 at yahoo.com] 
Sent: Monday, May 27, 2013 12:18 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Anti-fouling question

I have always painted the sending unit and speedo.  It has never effected my
depth gauge  performance .  It's best to thin the paint for speedo and keep
the paint off the paddle-wheel axle if you can.
Mike Ott
'Amanda Lu'
#508

Sent from my iPad

On May 27, 2013, at 11:40 AM, JJ Morrison <sail-ability at sympatico.ca> wrote:

> I wouldn't but you should contact the manufacturer(Raymarine?) on this one
unless someone else comes up with a solution....CheersJohnM
> 
>> From: summerwind3 at comcast.net
>> Date: Mon, 27 May 2013 11:31:41 -0400
>> To: C320-List at Catalina320.com
>> Subject: Re: [C320-list] Anti-fouling question
>> 
>> There is already anti-fouling paint on the units.  Is using sandpaper the
best way to remove the paint or will it damage the bottom of the units?
>> 
>> Thanks very much.
>> 
>> Joe
>> #908
>> 
>> On May 27, 2013, at 10:45 AM, JJ Morrison <sail-ability at sympatico.ca>
wrote:
>> 
>>> Yes it will especially the depth sounder. I pull out the knot log
occasionally and clean it up, not a big deal as my model has the flapper
valve which slows down water coming into the boat whilst putting the plug in
place.CheersJohnM1999#574
>>> 
>>>> From: summerwind3 at comcast.net
>>>> Date: Mon, 27 May 2013 09:50:46 -0400
>>>> To: C320-List at Catalina320.com
>>>> Subject: [C320-list] Anti-fouling question
>>>> 
>>>> Should I put anti-fouling paint on the bottom of the depth and speed
devices?  Will it effect their performance?
>>>> 
>>>> Thank you.
>>>> 
>>>> Joe Aberdale
>>>> 
>>>> #908
>>>                         
>> 
>