The chlorine evaporates off though.  It wouldn't stay in the coolant
system.  A bucket of water loses it's chlorine within a day for sure.  I
can't imagine that the chlorine would stay in a vanagon coolant system
for more than a week or so.

Jack R. wrote:
> The biggest advantage of Distilled water is that most city water contains
> chlorine at about 1 part per million, which we all know how chlorine is a
> corrosive.  I don't think that there would be enough minerals in a gallon or
> two of tap water to make that big of a difference.  However, there is enough
> chlorine to possibly contribute to problems.
>
> I've always used distilled or filtered water, which I have let sit for a
> week or so to allow the chlorine to dissipate.
>
> Jack
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Dennis Haynes
> Sent: Thursday, January 31, 2008 8:32 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Distilled Water
>
> Yes, arouand that time as many new coolant formulations were being
> introduced,many cooling system issues were found to be related to minerals,
> ions and other stuff in tap water that reduced the effectiveness of coolant
> and cuase precipatation, (deposits that clogged) and abrasion of cooling
> system parts. Most large diesel engines reqiure distilled water fill and
> many antifreeze suppiers now sell pre mixed with distilled or deionized
> water. If you have hard water, you want to use distilled. If you think there
> is a lot of confusion with automotive antfreezes, try the truck and
> industrial engine world.
>
> Dennis
>
>
>
>> From: Vdub Guy <fonman4277@COMCAST.NET>
>> Reply-To: Vdub Guy <fonman4277@COMCAST.NET>
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Distilled Water
>> Date: Thu, 31 Jan 2008 12:26:04 +0000
>>
>> OK, I knew  I wasn't dreaming, a search of the archives brought up many
>> hits about how distilled water should be used with coolant. I only went
>> back as far as 2003, and don't have time to sort through them all, but has
>> opinion on this changed?     Jeff
>>
>
>