wow ppl these days sure are trying to get ghetto on everybody....like an old post where a guy was gonna make a blower out of a leaf blower and tubing...just go with manufacterd ones they look nice give you the hp your looking for give you better gas mileage and will most likly work longer than your pvc contraption lol...now dont get me wrong im not trying to degrade you or tell you what you can or cant do...im just trying to tell you the easier...and possibly cheaper way