RO/DI unit troubles

[burrows14]

I'm trying to set up my aquasafe unit and can't get it to work properly. Ive went thru the forums and found a sketch on how it should be set up and everything is connected properly. I bought the garden hose adapter in hopes i could feed it off that and have the discharge water go into a garbage can and the filtered water go into another. I have lots of presseure and water is getting to the unit just fine but i am getting no filterd water. All the water is shooting out of the waste line. i only way i can get the water to go thru the DI resin is if I hold my thumb over the waste line and only then i get a few drops out of my unit. any idea's what im doing wrong here?

cheers
Ray