I'm familiar with silos although ours were not airtight. And I'm a little familiar with the other related options including Havestors. Only for storing silage and haylage, though, so I may just be missing things but I'm having trouble seeing how it would work with dry feed or with such a small amount of feed (in the size of even the smallest Harvestors, although I realize there may be other airtight silo options). How do you get the oxygen out without filling the silo with fermenting feed? And how do you get small amounts out without letting oxygen in?I was planning on having the feed for the whole year, we have an older air tight silo I would store it in