Re: 12" MYA QT Hookah + My 1st post on Hookah Pro!
1 40mm will do on a mya bowl.
1 33mm will do on a mya bowl if you use a windcover.
don't forget to let the coal turn completely red!
the water should be about 1 inch from the tip of the downstem. as for ice, try with ice, and then without. it's all about preference.