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In the gb4 test three, @Manofconstantsorrow said:
Any chance on expanding on the steam generator?
Rather than clutter that thread, I started a one.
I based it on Pintoshines one on AD. I use my 6kW keg boiler with a 4" to 2" reducer. On top of that I tri-clamp a 2" end cap that's been drilled & tapped to 3/4". A standard brass plumbing fitting screws into that. 3/4" copper pipe is then soldered in.
It runs up to a 3 way valve - 1 side is open to the atmosphere, the other goes to the wand. I mounted a t piece with a 15psi rated steam certified pressure relief valve. I used 2 unions so I could adjust the arm up & down as may be needed (I have a couple of different size vessels I use to mash in depending on batch size). the sparge ring is 3/8" with a heap of 1/8" (?) holes drilled in the bottom.
These pics should explain it better