Wow, thats a lot of tube. Mine is only about 10" long and slotted on the bottom every 5mm or so with a junior hacksaw, the flow rate is nice and slow, the catchment area is small so the natural filter area ( from the grain ) is also small and so I think finer. With so much pipe the natural filter area is huge, the flow rate if too fast will stop the natural filter happening. That was my reason for not using a false bottom, clearly many find it satisfactory. For me, slow it down and let it come out cleaner.