The computational procedures noted above are inadequate for accelemidan.-,a.tdhe. inlet to a flexible hose. Some engineers recommend higher velocities in the hose than in other parts of th e sy ste m , a p r o c e d u r e t h a t causes h ig h e r s y s te m p re ssu re s and increases power requirements. The air entering the hose must break up the mass of granular materials before they can be conveyed through the tube. This procedure requires more energy per pound of material than other feeding procedures