Then you didn't build yours correctly. The original design has a clever provision to drain almost completely. 

Jim

On May 8, 2012, at 12:09 PM, "HotelWestfalia" <zolo@foxinternet.net> wrote:

> The only reason I don't like it is, that when you are finished filling up, it's a mess to empty that pipe.  I use a flexible one that you can bend down and empty it into a container.  I have the cap on when I fill up at one of the hoses, having the relevant pipe plugged with a rubber plug I buy at Lowes.
> Zoltan
> 
> 
> ----- Original Message ----- From: "James Felder" <jim.felder@GMAIL.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Tuesday, May 08, 2012 9:52 AM
> Subject: Re: Filling the coolant - Libby Bong
> 
> 
> I am a satisfied Libby Bong user.
> 
> Jim
> 
> 
> 
> On May 8, 2012, at 11:23 AM, Rob <becida@COMCAST.NET> wrote:
> 
>> This was mentioned, I've never used one but it looks like a good idea.
>> 
>> Libby bong
>> http://www.thesamba.com/vw/forum/viewtopic.php?t=234192&highlight=libby+bong
>> 
>> Rob
>> becida@comcast.net
>