Homebrew PCBs

If it fizzes, you added too much. It won't actually do any harm if you 
do put too much in. I normally fill the cap of the bottle up and tip 
that in. It seems to be about right for my tank.

Les

Stefan Trethan wrote:

>
>Of the 30% stuff just a little bit. A spoon full or two (DO NOT USE  
>METAL), 5ml or less i'd say. Basically the smallest amount i can pour with  
>my H2O2 bottle. This regenerate enough etchant for one, maybe two or three  
>boards, depending on size of course.
>
>ST
>
>
>Be s
>