Homebrew PCBs

I have a 5 gal. tank and use Ferric Chloride  can etch upto 4 single 
sided 8" x 12" boards in it.  I have three rows of 1/2" CPVC pipe 
across the bottom with I think about 1/8" holes on each side about 
1" or so center to center.  I use a small air compressor to get 
enough air volume.  A standard fish tank pump worked OK when I had 
my smaller tank but had to go to the air compressor when I started 
using the 5 gal. tank.


Ben