My strainer is below the waterline, but then it goes into a siphon break, which 
is above the waterline.  Isn't that what keeps water out of your engine?

Wild Bill
C&C 39

-------- Original message --------
From: Jack Brennan <jackbren...@bellsouth.net> 
Date: 11/18/2013  6:34 PM  (GMT-05:00) 
To: cnc-list@cnc-list.com 
Subject: Re: Stus-List winterizing engine "hose rig" 
 
Aren’t water strainers commonly positioned above the waterline near the 
centerline of the boat? I know mine is. That should keep any raw water from 
entering the diesel. The T fitting would be a non-issue.
 
I routinely leave the water intake through hull open while sailing, and on long 
trips, and I’ve never had a problem with the diesel flooding.
 
Jack Brennan
Former C&C 25
Shanachie, 1974 Bristol 30
Tierra Verde, Fl.
 
From: Marek Dziedzic
Sent: Monday, November 18, 2013 1:32 PM
To: cnc-list@cnc-list.com
Subject: Re: Stus-List winterizing engine "hose rig"
 
Hi Chuck,
 
I have seen this “tee” arrangement on many boats, but I was advised that it is 
an easy way to flood the engine with water. If your water pump does not stop 
the water flow (and it does not have to), you can easily overflow the muffler 
and the mixing elbow and fill the cylinder(s) with water through the exhaust 
valves.
 
It does not have to happen (especially, if you are quick with closing the water 
tap after you stop the engine), but it can happen.
 
If you want to be really paranoid about it, another issue is that the tee is 
either plastic (PVC) or brass; neither is recommended for under water fittings 
(PVC – not strong enough; brass – corrosion).
 
just a though
 
Marek (in Ottawa)
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