Both of my fermenters have taps that are just far enough above the bottom to leave the trub behind. I connect the right size tubing to the tap,then into the bottom of a bottling bucket I made with an airlock grommet. It has an Italian tap with a small stepped spout of red plastic in this thick lugged body that needs a 1" hole to connect.
I used the Dremel to cut out the marked hole that just touches the black line under the logo & text (the one with the beer,wine,grapes pic on front). The tap came with 2 seals & the jam nut. So I can siphon to about 1/2" or so from the bottom,& tip a little to get all but the last 1/8" with a little gritty stuff left.
So,I just take the 5/16" tube for my auto siphon & connect it to the step on the tap,& bottling wand on the other end.
It can hold some 7G clear full,so I can easily use it for either the 5G FV,or my cooper's FV,which can do up to 25L (6.6G). I just bottled my wife's ale yesterday,& it's just slightly hazy. So it works pretty good,& no leaks or siphoning woes.