typically i dump the trub just as the fermentation is winding down...about 4 days in. This cleans out all of the garbage. If I had a hard time removing trub before the conical, I will do a quick dump about 30 minutes after filling the conical. To avoid oxygen exposure during a dump, I attach a balloon to the conical using a stopper and a short piece of tube, ...
First of all, once you remove the trub bulb, there is no need to add another one. If you don't add another trub bulb and open the valve, how are you getting your "glub"? The idea is, attach the bulb before you rack in your wort and pitch yeast, transfer the wort and open the valve (that way your hand is on the valve and you can verify that nothing is ...
There is a trick to pulling a small sample or drawing yeast.
Use a 1" blow off tube of ample length to reach the bottom of a bubbler jar on the floor.
The volume in the tube is enough to draw a small sample, as you draw the sample you will see the sanitizer suck up in the tube, don't let it crest the arch and you're ok.
For a large draw you can use a ...
Instead of a opening a dump valve to drop the trub into a container full of air, why not Just leave the valve open and let the trub settle into the container? When you want to isolate the beer from the trub, you could just close the valve. Then you can unscrew the container and havest the yeast.
I know your looking for larger, but thought others that find this thread might want to consider this. Large volume isn't the only reason to go to conical