The problem:
The tap is positioned too high up on the Braumeister leaving a large amount of wort in the brew vessel when draining wort.
Solutions:
1. Tip the Braumeister to keep the wort flowing to the tap.
Issues: The vessel (on the 50BM at least) needs to be tipped quite a long way, the lean angle requires some clearance at the edge of the brew table so that the control unit doesn't prevent the pot being angled as far as possible. It is impossible/impracticable to drain the maximum amount of wort.
2. Create a DIY dip tube and combine with a hop filter.
Issues: The vessel still needs to be angled to allow full draining, however the lean angle required is far less than for option 1 and draining of wort is complete. A hop filter is required to prevent hop material from blocking the dip tube.
3. Purchase newly available Spiedel hop filter.
Issues: Whilst this will prevent hop material from blocking the tap, it won't help to completely drain the wort and will require the vessel to be leaned as per solution 1. (Note: I don't have this hop filter so I am making an observation that could be corrected by a Spiedel hop filter owner.
4. Purchase a custom made dip tube and hop filter - I believe these are available in Australia and I know of a BM owner that uses one of these and has posted about this elsewhere on t'interweb.
I chose Solution 2.........I made a dip tube for my 50BM, it works effectively leaving less than 500ml liquid amongst the trub. You will need basic plumbing skills and a couple of tools (pipe cutter, solder/flux and blow torch) to create the extended 90 degree elbow. You will need gauze (from ebay) and some way of cutting the gauze and I used flexible hose to shape the gauze.
15mm, t-piece, solder ring, formed gauze with 15mm tubing to try and reduce folding.
Dip tube - 90 degree solder ring with small copper insert that just slides into t-piece and 22mm silicone tube that fits into tap recess inside the pot.
When removing the malt tube the malt tube gasket does have a tendency to catch on the hose clip adjusters, requiring the gasket to be fished out of the vessel, a minor irritation, so I will replace the stainless hose clips with smaller neater ones. Note that the t-piece and elbow are not soldered together they come apart making installation and cleaning easier.
Gauze fits under outside elements.
Only a couple of mm under the t-piece.
15mm silicone tube completes the siphon, still need to tip the BM to get the last of the wort, but not as far as without this setup.
Not much left after brewday