md2b startup

[@Jackazz21]

Nice to hear that Great sound man. Thanks!

[@fadogaucho1]

Hi, great work! If you are so kind, ould I ask a question? I recently purchased a new cooling block but is slightly different from the old one. It hasnt the tiny hole in the front end, down the thermostat. And has a nut-plugged hole on the lower face., near the T tube. . I don't unserstand its function. Could you help me? Thanks and best regards