Of course. Nowadays, you can easily find a lot of different books on this theme and I'm not sure that I will resolve your problems but try to check this article in case you want to stop drain blockage and you don't know what to do. Anyway I believe that it's much better to find some professionals services for it.
-- Edited by flygc on Friday 5th of August 2022 07:11:54 PM
If the lock has a mechanical problem, it will either need to be repaired or replaced. A replacement lock for a standard residential lock can be found at a hardware shop and installed by the homeowner. It's advisable to have a locksmith unlock and lock repairs a high-security or business lock.