[C320-list] Winterization

[Michael Leschisin]

I picked up a refractometer this fall on Amazon for under $25-
https://www.amazon.com/Refractometer-concentration-Hamh-Optics-Tools/dp/B073Q2LSG9/ref=sr_1_8?keywords=Refractometer&qid=1571272868&sr=8-8

You catch the last few ounces coming out on the exhaust as you shut down the engine from its antifreeze run and drop it on the lens.  I love having the peace of mind knowing my engine is protected to 70 below here in Wisconsin!

The chemistry is different for the minus 50 antifreeze you’ll use in your water system but you can get a pretty solid estimate of protection comparing “percentage readings” on the meter’s scale for fluid fresh out of the bottle and what’s coming out of each tap on your boat.  



Michael Leschisin
#995


> On Oct 16, 2019, at 5:52 PM, Troy Dunn <troutwarrior at gmail.com> wrote:
> 
> +1 on never having anything actually come out of the muffler drain, so I
> suspect this is a step that can be skipped.
> 
> I have read that if you have the time and can find a decent automotive
> supply place that still keeps documentation on all the various hoses for
> various autos that it is actually possible to find pre bent hoses that will
> work perfectly once trimmed to length on the 3GM30F.   I'm not sure if I’m
> that frugal/patient to go this route, my confidence in being able to do
> this at your local auto parts chain store is not high.   On the flip
> side...the Yanmar prices are truly outrageous...then again you can always
> double the cost of any item by adding the word marine to the product
> description.