Be Cool overflow can

[Tom Vogel]

You know, I just realized there is no way to know how much coolant would be in this pretty aluminum catch can that came with this BeCool radiator setup. The overflow tube goes from under the cap to the bottom of the catch can, and then there is another brass fitting on top of the can that goes to.. Uh.. I don't know, it just goes out to an open engine compartment. Wth...
If it's a pressure system, wouldn't it be better to have that fitting on top go to some clear plastin container of some sort?
What say you guys?....