Also on the switch, standing at the front of the machine the pump switch is behind the on/off switch. as the pump switch is used the most during the brew it is better to have the pump switch as the foremost switch to save accidentally switching off the machine during the brew. When I replaced my switch ($7)
I put the pump switch to the front, hell of a lot better.
Going full volume is tricky but there are ways to get more into the malt pipe, as Leyther says the central overflow pipe is to short but can be extended with some silicone hose, I think I used 25 mm ID cut it with a box cutter down the length and it folds in on itself. The problem then is the handle holes where the grains can get through.
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Another piece of silicone through both holes and another litre or two of liquor can go in.
Funny thing is, any grain that has left the malt pipe has just been pumped up and back into the malt pipe. Grainfather has the same pump but a number of complaints that the pump gets blocked, so really the only issue I have had was the switch.
I’ve been having this exact issue on larger grain amounts with Robobrew Gen 3. Thinking next time I’ll take out the central overflow pipe and use a grain bag inside the Robobrew. Basically do it as a BIAB but with recirculation. Should be able to get a few more litres in.



