I have a bit of a problem. I have apiaries that send extra drones to a chest that then in turn is pumped, using a wooden transport pipe and autarchic gate and then an iron transport then into the genepool. However when the genepool is full and the bees are being pumped, instead of the iron pipe stopping the bees from flowing in, the bees continue and then just pop out onto the floor. Does anyone have some suggestions on how I can manage this overflow?