If you have a raw water strainer fairly close to the intake fitting, I can't 
see any reason to put an external unit on. You can service the internal 
strainer easier than an external one, and can always blow out the intake if 
needed. 

Rich Knowles
Indigo. LF38
Halifax

On 2013-08-14, at 11:10, Andrew Burton <[email protected]> wrote:

Don't do it. see this on the Compass marine site: 
http://www.pbase.com/mainecruising/external_strainers


On Wed, Aug 14, 2013 at 11:06 AM, kelly petew <[email protected]> wrote:
> Here on the Chesapeake, sea nettles abound for most of the summer, and they 
> are a constant threat to my engine water intake.  This is particularly true 
> when I am getting ready to leave the dock.  
>  
> On my 30MKII, the engine intake is completely "naked", i.e., no protection 
> against drawing in a sea nettle, or any kind of debris.  There's simply a 
> small orifice directly into the marelon seacock.  It's not unusual to find 
> debris in the onboard strainer.  
>  
> I am considering installing a bronze strainer to mitigate the risk.  I would 
> appreciate any feedback on what, if anything, others have done to address 
> this problem.  
>  
> Thanks,
>  
> Pete W.
>  
> C&C30MKII
> Siren Song
> 
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-- 
Andrew Burton
61 W Narragansett Ave
Newport, RI
USA 02840
http://sites.google.com/site/andrewburtonyachtservices/
phone  +401 965 5260
_______________________________________________
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_______________________________________________
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