Hey Bladerunner, read the site, really good job! I've got about 10 people in the last week sending me links to your pictures saying "can you make this".
As to the fittings. Thats the same thing DD told me was the original mazes used 1/8NPT and the 2.1 and 2.2 blocks used 1/4NPT. I think NPT and BSP are pretty similar, if not the same thing. All the blocks I make use 3/8NPT.
Thats the whole problem with the maze blocks is if the fitting is to large, then there isn't enough room inside for the maze.
All these guys that run 1/2"ID tubing then try to force the water through a 1/4"ID hole. I dont see it making as much a difference going from 3/8"ID to 1/2"ID, other than hype
