Do you get any back pressure on that and pellets coming out through the sides of the fan? I ask because I’ve got an air assisted rotormeter going into the Venturi of my jd drill and I’ve had numerous adaptions to stop it doing as I’ve said. I did try millet seed through it into a cover crop mix in the main tank of the drill but more millet came through the rotormeter fan than into the drill Venturi. Have you got any pictures of how much fall there is and how it goes into the Venturi? Thanks
Yes! It was a proper head scratcher; after 2 failed attempts of trying to create ‘suction’ or at least low enough pressure that the stocks fan can overcome I finally injected into the Venturi assembly ABOVE the air flow and BELOW the metering cassette. In effect there is neither positive or negative pressure there (stick your hand in when it’s running to feel). It now works fine. It’s on a sprinter which are low and long so the run is quite horizontal; needing nearly a flat out fan to get it not to settle. I’m going to mount it higher and closer to the tank which will make it harder to fill/calibrate but will have a bit more gravity to help it along. I’ll try find/take a photo. Tried a load of slug pellets and used the one that took longest to dissolve in water as they’re buried.
What’s the issue with yours? Mine feeds pellets better now although some come back through the rotormeter fan. The issue is lighter less dense material like small seeds don’t work at all and come through the sides of the fan. I keep trying other things but when I go to use it, it’s no good and by the time I try something else another season has passed.
