@luis.f.acosta.jr Yes, you are right Luis. That's one reason for that. However, it is simple to check that. Please check the absorber inside your WindSorb after your playing, before draining by the water key. You can find the absorber is wet. It reveals that your spit and water leaked from the water key. If it does not, your water key is perfect. Luis, if you add the brand and model name of your instrument on your Amazon review, you can get an additional 20% discount. When you do, please give us one more star to make 5-star feedback if your negative opinion is only for the price. And you know the WindSorb is the world's first ever invention. We have developed it by engineered and scientifical ways by the orogyLAB-muchanics professional engineers. We have published a patent for our technology. That's why it is quite expensive. An easy solution needs more payment. Please be understood. We will offer a lower price for students soon. Thanks Young-Tae Kim CEO orogyLAB

Dear customer Luis.F.acosta.Jr, Thank you so much for your very important opinion. Yes, it is possible that some customers can misunderstand about that. Of course, it is not the case of all players. However, it is true that most players can find a tiny puddle on the floor after playing their trumpet even their water key normally works. That's because of lots of small drops leaking from its water key due to some reasons (e.g. instantaneous high pressure inside the trumpet, especially playing high notes that require high pressure, or etc.). We need more objective evidence about that, however, it is clear that there are many people who find the tiny puddle after they play their trumpets. Anyway, your comments are really valuable in that we did not think about that. So, we changed the description on Amazon to minimize customers misunderstanding. Please check it and tell us more when you need. Thanks a lot, orogyLAB