yes, that leather looking stuff is the closed cell foam. I cut a square to fit tight into the hole made when I cut out the city water fitting. The foam was just some stuff I had lying around, it is about 1/4" thick, and black. It was just chance that I happened upon the trick of using the foam to prop open the port. It worked and I didn't bother making any sort of clever, fancy, "hey guys, look at this" hatch prop :)

alistair

On 2011-09-26, at 5:33 PM, Edward Maglott wrote:

> Alistair,
> Can you elaborate about the foam square?  I see one of the photos below shows something like leather behind the opening that was cut in the box.
> 
> Thanks,
> Edward
> 
> At 06:46 PM 9/25/2011, Alistair Bell wrote:
>> I have some pics of the city water mod when I took the port out of my '82 westy.
>> 
>> http://shufti.wordpress.com/2010/08/10/westy-city-water-port-fan-mod/
>> 
>> I cut a square of closed cell foam which fits in the port tightly and acts both as a gasket when flap is down, and as a prop when flap is open and fan running. I never used it while driving.
>> 
>> alistair
> 
>