Your only solutions are to drill out the lock and throw it away (free),
remove the whole assembly from the side of the bus and take it into a
locksmith to have a key made, (a bit of work and probably cost $10-$20),
or buy a complete new set up and just use the lock from it ($50).

Each key is different. It is locked to keep malicious people from
putting foreign substances into your water tank, probably a good idea to
have one.

--
Stuart MacMillan
Manager, Case Program
800-909-8244 ext. 8208
Fax: 206-269-6360

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