Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I use a 5 Gallon Aquarium installed three rows of 1/2" CPVC pipe
across the bottom and feed it from both ends with a small air
compressor. Don't recall the size holes I drilled into the pipe,
maybe 1mm. The small Aquarium pump that I had used with a smaller
tank did not work nor did a larger Aquariium pump work very well
with the 5 gallon tank, even tried 2 pumps together. Had this small
portable compressor and tried it and it worked great, just a little
noisy. Put a value in the line to control the amount of bubbles.

I use Ferric Chloride in my tank. With fresh Ferric Chloride it
will etch upto (4) 8" x 12" single sided boards in about 5 mins.
(longer times the more the Ferric Chloride has been used) with it
heated, use (2) Aquarium heaters to heat it, ran the temp. controls
up all the way bypassing the normal stop, never measured the
Temperature.

Ben