Nope i didnt know that i thought they just put them in this machine that shot something through the liquid they were sitting in and cleaned them. I guess it would be cheaper...

When i said i dunno if they still worked, i ment i dunno if having them clean will fix the problem, and if it didnt then id be loss for the money spent on cleaning them as opposted to just buying new ones straight out.

Is there a benefit to having bigger ones? HP gain or anything?