Mauricio, I have the same problem, with both the Pro 36 and Solist, what I have found is that after you play your melodica and you blow it out do not lay it flat. I have a melodica stand that hold the melodica up right. After a few minutes of it being upright, blow again. The theory is simple the moisture will tend to fall by gravity. If you blow and leave it flat the moisture will stay where ever it sits. If your reads are getting stuck take a needle and scrape the side of the read block as there is where the moisture will build up. Carefully not to bend your reed during the process.