And you'd know where to position the arm...how?
I don't know how I'd do it and I've been running an autosparge for many years.
btw, that's a 20g kettle. The only brew that submerges the valve assembly at all is a massive 1.110 stout, which even with the gloves can be an adventure.
Oh - another btw: while I appreciate the intent Blichmann had with the two different sides of the float arm "gearing", I stick a thin Buna-N washer between the arm and the valve before tightening down the thumbscrew.
With that, it doesn't matter which side of the arm I attach to the valve assembly, I can infinitely adjust the arm angle, relying on the washer to keep the two sides in a stable relationship throughout the brew day...
Cheers!
I think I’m satisfied with a position that closes the valve before the tun overflows. It’s ok if on some batches that’s 2” above the grain bed and on other batches that’s 4” above the grain bed. Not worried about infinitely adjustable, close enough is perfect.