I made my false bottom out of perforated stainless. My bottling bucket has a drain fitting in the side down low, like Voodoo's pic. But I cut my false bottom into an oval shape, so it fits diagonally from above the drain to the opposite bottom corner. But I use a grain bag too. Never had any grians in my wort, nor any plugged sparges. Make a loop of wire through the high side for removal, or it may become a permanent installation in the bottling bucket.
So far, I've had more experience thinking than I've had brewing....you don't think they are mutually exclusive, do you?
72 batches so far,
48 wine, mostly Loquat, peach, plum, prickly pear
23 beers and ciders
1 Tequila, from a prickly pear wine experiment that didn't work. I call it "Prickly Heat"