Homebrew PCBs

On Mon, 13 Dec 2004 16:40:13 -0500, Dave VanHorn <dvanhorn@...>  
wrote:

>
> Must be a different sort of pump.
> The ones I'm familiar with, have no inlet valve as such.
> They are a small blue or green box, with just an outlet.
>


well, mine had no port for a hose, simply a hole in the pump mechanism.  
but nobody can prevent me from simply attaching a hose there with the aid  
of glue.
In normal (fish) operation the hole in the mechanism sucks the air in form  
the inside of the pump housing.

ST