Homebrew PCBs

Correction, the link to counterflow rinsing is 
http://www.blackstone-ney.com/04.TP_better_rinsing.php

and I also got the liquid levels mixed up, The second tank 
has a higher level than the first tank.

Adam Seychell wrote:

> 
> 
> 	A two stage counterflow rinse stage would consist of two 
> tanks next to each other, the first tank (the tank you first 
> dip) has about 1" higher liquid level than the second tank. 
> The wall between the two tanks has a open hole so the first 
> tank pours into the second tank when its liquid level goes 
> above this hole. The second tank has an effluent hole about 
> 1" below this level. If you are a bit interested in 
> counterflow rinsing then check out;
> http://www.justoffbase-tools.co.uk/tools.asp?parent=1I2433P1056M0