floral_dance
Member
I know there has been a topic on valves before but I have a specific question, what does it mean when your valves are relapped back into their casings? I have been having problems on my sovereign cornet which is about 9 months old with valves sticking etc, I took it back to the supplier and they said they would try lapping the valves back into their casings, could someone please enlighten me? 