I cannibalized the plates from the Double Deuce electrolyzer (3"x6"in). Each plate had two holes (3mm) drilled in top and bottom centered. To avoid electrical leakage between holes, I cut my gaskets to something like 3"x5" one hole of each plate will go in the inner diameter of the cut gaskets, the other hole of each plate goes outside the diameter of the cut gasket and is used to make an electrical connection for whichever plates I wish to hook up. The holes are then staggered as each plate is stacked. To keep electrolyzer in each cell it had to be flooded. Also to keep circulation of hydroxy and electrolyte the cell has to lay horizontal. Circulation through the electroylzer to reservoir works perfect and does help in keeping it at lower temps. Hydroxy and electrolyte flow up to the reservoir, and electrolyte flows through the reservoir bottom, to bottom of elctrolyzer. used 1 Tsp of NaOH for 2qts distilled water.