I'm sure this is probably a stupid question but I just purchased a "radiator genie" to clean my 2380 radiator. In the instructions it says to backwash the radiator. Based on where the radiator is and the pre screen I assume the airflow is moving from the seat to the engine so the opposite should be true for cleaning the radiator. Blowing from the engine toward the seat. I've watched individuals clean a bx radiator and they all seem to go from the seat side forward. This is seems opposite to me but since I've never cleaned it before I'm open to any advice. I don't want to damage the radiator and wonder if it matters if you approach it from both sides? Thanks for your help, Bill