got a call to above dishwasher with a broken door handle and bottom spray arm that will not refit back onto central feed pipe i have been back with new handle fitted ok but i cannot get the new spray arm to connect onto feed pipe and milled bush the central feed pipe needs to be lifted up so as arm can be snapped into position but to do that i need to take out main filter body which i cannot remove i have released feeder pipe that goes from the base of the filter to top spray arm but still no joy anyone out there throw any light on this i dont want to force the main filter to much and break it its £69 +vat have come come across this one JIM