I would run the AF through the engine and the fresh water system and then push 
it out using compressed air. The shop vac might work, as well.

There is an easy way to run your engine on the hard - use a 5 gal bucket in the 
cockpit,  fill it with AF, attach a hose extension to your intake and put it 
into the bucket, run engine until all AF is gone. I use 5 gal to be sure - you 
don't want the AF to be diluted and you have to push out all the water from the 
lift muffler.

For the fresh water, I don't pour AF into the tank - it would smell, and you 
are encouraging the growth in it. Rather, empty the tank, purge the water from 
all hoses using the compressed air (shop vac??) and then disconnect the hose 
from the intake on the pump, attach a spare length of hose to it (I bought a 
spare connector that threads onto the pump), put that hose into a bucket of AF 
and run through all faucets until solid pink comes out. When done, again purge 
all remnants of the AF from the hoses using pressured air. An RV store would 
have a adapter that you can attach to your air compressor (<$10); amazon has 
them, as well (Camco 36153 or 36143).

If you have a water heater, install the bypass, so that AF won't run through it.

Make sure that you don't forget your bilge pump(s) (both automatic and manual), 
potentially a pump for the ice box and any other pump you might have. If you 
have a shower sump - AF should go there.

Good luck

Marek

1994 #122 "Legato" (on the hard for a month)
Ottawa, ON



-----Original Message-----
From: CnC-List On Behalf Of Steve Thomas via CnC-List
Sent: 24 November, 2019 10:53
To: cnc-list@cnc-list.com
Cc: Steve Thomas <sthom...@bellnet.ca>
Subject: Re: Stus-List winterizing a 29-2


I run engine coolant antifreeze through the engine and the head. Alcohol-based 
antifreeze is hard on rubber parts and seals. 

I used to use plumbing antifreeze (rated for potable water systems) in the 
onboard water supply system but found it difficult to eliminate the smell/taste 
afterwards. Now when I do it, I use a shop vac to suck the lines dry and run 
the water pump into the vac as well. 

Steve Thomas
On the hard in Ontario

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