Hi thanks for you reply. yer i had a look before again for any problems. I am not 100% certain on the valves, but i have changed the around all over and now they are in the position where they sound the best they can. In terms of leaks, i still can't find any... The trumpet is old, it requires maintenance and i don't have much knowledge on this. I've only been playing for 4 months. Not sure if i should go get it serviced or just sell it off. Not sure if its worth the trouble of getting it serviced.