goodburbon said:
Good thinking, Noted and will do this pm.
One other thing, read up on arcing and exploding HHO generators, due to poor contacts and corrosion inside their cells ASAP at:
http://diyhydrogenhho.com/
At least you have a cap that may release before exploding on yours, (don't over tighten it, get it just snug enough to where it can still be pulled out by hand) , but no doubt some of the idiots out there have exploded their galss jar versions and left glass fragments in the neighbors cat already!
Looks like we need solid metal, one piece electrodes going through the cell wall, with the copper contacts on the outside of the cells.
On the PVC, the sch 40 pipe is derated to 0 psi pressure service at 140 F, as it looses its structual integrity above 140 F! I am pretty sure it melts well before 212 F!
The styrofoam can handle boiling water at 212 F IIRC.
Fast and simple way to drop the current is to reduce the water volume and thus the area of exposed plates, or to reduce the amount of sodium bicarbonate used. I would drain half the water, and refill it with distilled water to drop the bicarbonate concentration in half, and see if that gets the current under control. Might also want to drop the water level some to keep liquid water out of the intake and feed hose.
You might look for some polyethylene water tubing for ice machines at Home depot, about 1/4" ID, and try to fit some of it to vacuum hose rubber tubing in line.
In the long run, best way to drop the overall current and increase the HHO output is to add plates in series between the 2 outer (+/-) plates to drop the per plate pair voltage.