On my dust collector, the trash can separator is a 35 gal galvanized can topped with the ABS lid available from Woodcraft. The lid has an elbow on one side, and nothing on the other. Once the can has filled about 1/4 of the way with chips, the chips and dust (mostly) go directly to the DC. The chips mound up in the can under the elbow on the separator lid, forming a ski jump for the spinning chips, aiming them right at the elbow. Is this normal? I would like to empty the can less often if possible. If the DC is running, and no tool is is in use, the DC will even suck some of the chips out of the can while no new dust is being made. I thought the ports on the lid may have been hooked up backward, but I searched this forum, and it appears that they are hooked up properly (elbow to DC). Is it necessary to turn the elbow to a specific orientation in the can? Any other thoughts so I don't have to empty every 15 minutes? I'm a bit confused on this one.