The original design was a 3 tier.(Click here to see it) This design used 6 solenoids, and would also take up a  significant amount of vertical space compared to the revision (Click here to see it). The new 2 tier design also needed only 5 solenoids, and would provide for an optional Recircusparge™. I have further changed the design, by moving the boiling kettle up to the level of the HLT. This reduced the height of the stand needed.

I've made some piping changes in the last year, mostly due to the fact that I switched pumps. The addition of the lauter grant also moved V3 between the Mashtun and the Grant. The Grant is explained in its own page