Hi , I would be grateful if anyone could assist with a query I have making my own pellet silo.  I am using the base of a very small silo which contains the suction arrangement. It was about  4 foot high and the new silo is 9 feet high.  I'm wondering if the increased weight crush the 'hat' and if I should make something like a table above it to relieve any strain, any thoughts? I attach a couple of photos