hey all i have a u can do 3d with an os 91 four stroke.
i came across a check valve at tower hobbies and wondering if this would do anything.
i will be setting my tank on the cg just like I& tech.
i am not running a pump because i don't want to spend any more money on this thing.
the link to the check valve is right here
http://www2.towerhobbies.com/cgi-bin...?&I=LXG869&P=0
will this help out keeping pressure in the tank????
thank you all for your concern.