Homebrew PCBs

Hi,

I'm very frustrated with my etcher.
I have bought a very expensive bubbler hose, flexible, black, for finally  
generating a even curtain of tiny bubbles.
Well, the first day when i insalled and tried it it worked nicely. But  
now, after weeks of disuse, only very few pores will create bubbles and i  
am back in the land of extremely uneven etching where i was months ago  
with my simple plastic hose with holes punched in it. I do think my pump  
does not deliver enough air, but i'm not sure if i should buy a bigger  
one, as they are expensive and i might just find it does not work at all  
again.

So please, if anyone has a long-term working bubbler system in CuCl  
provide data on the Bubbler and on the pump. thanks a lot.

Luckily today i make boards with only brutish traces (none smaller 1mm),  
so it does not matter.

ST