Dehumidifier water can be quite dirty. 

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Larry Alofs
Sent: Tuesday, June 30, 2015 7:12 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Coolant Draining

If you mix your own, water from a dehumidifier is a good thing.

Larry A.

On Mon, Jun 29, 2015 at 10:49 PM, Dennis Haynes <d23haynes57@hotmail.com>
wrote:

> Not the best of ideas. You will have an unknown quantity of water 
> remaining and it will take some effort to get the coolant to water 
> ratio right. Today's coolants last so long and the system tends to 
> require service of some sort frequently enough that not getting it all 
> out is not a problem.
> What is important is to use distilled or otherwise mineral free water. 
> For ease I just use the pre-mixed coolants now.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On 
> Behalf Of Dan N
> Sent: Monday, June 29, 2015 7:44 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Coolant Draining
>
> To purge the coolant in the engine I would fill the whole system with 
> plain water, run it a few minutes then flush it again...
>
> now you have a clean system ready to be filled with antifreeze...
>
> On Mon, Jun 29, 2015 at 4:34 PM, John Goubeaux <john@ucsb.edu> wrote:
>
> > Does someone know how much coolant stays in the engine IF one does 
> > NOT pull the plugs on the engine water-jackets when doing a coolant replace ?
> >
> > I'm curious as I replaced the long coolant pipes and most of the big 
> > hoses/ heater hoses as well , so pretty much all the coolant drained 
> > out , save for what's in the engine, wondering IF it is worth 
> > getting every last drop out ?
> >
> > Thanks  ..
> >
> > -john
> >
>