I am using the Rigid 6.6 Cdn gallon wet/dry vac as a dust collector in my mini workshop (aka garage!). I have connected smaller diameter hose to the existing hose. It is approx 8' long. This allows me, thru another connector, to connect it to my palm sander. Does anyone know if this is hard on the vac motor? Am I running too much hose? Am I not allowing enough "free air" entering the hose because the palm sander only allows little air to enter?