peter, are you using pvc tube, you are saying downpipe? surely 240mm downpipe is only available in ingham in qld! lol. is it sewer or stormwater? different wall thickness.
Brian Partridge STINGRAY 580 "Fantasia" A Class 585 "FHARKEN A"
YOU CAN'T POLISH A TURD BUT YOU CAN ROLL IT IN GLITTER!!!!!