I have done what I can think of and cleaned the sample up as best as I can but is there anyway to keep the ragweed seeds out of the bin? This field is weedy and I am having trouble keeping the seeds and some small bits of ragweed leaves out of the bin. Or do I just have to accept it as this is how it is?

Thanks for the help on setting this machine up also as my first trip around was fun as I tried to clean things up. It does look 100% better but I want a little bit more.