I received my 2 Flow Full hives and reading the user guide line by line I came across this:
If you have correctly adjusted the fit of your FlowTM frames the back faces should now be lined up to create a flat ‘window’ into the hive. The frames should fit snugly with little movement front-to-back or side-toside and there should be no gaps greater than 2mm (1/8”).
Safety Warning: Before adding bees to your hive make sure there are no gaps >2mm.
And again a few pages later…
I am now checking the less than 2mm gap everywhere, but I am still not clear why this is so important… Is this really that important that 3mm will be a problem ?
help anyone ?