Guys,
I'm looking for some advice about a pump and air stone for aeration of wort and am interested in what others use.
For about $20 I can get an air pump such as this Aqua One Precision 2500 that can pump 160 litres an hour.
Also, what are the pros and cons of a 0.5 micron versus a 2.0 micron air stone (these are the two that sizes that both Grain and Grape and Country Brewer sell). As I understand it the 0.5 micron is for use with pure oxygen. Correct?
Cheers,
Oliver