Can someone recommend a place to have the propane tank on my '90
westy serviced near San Francisco?

It has a bad service valve at the very least. I smell gas outside the
van and I can run the burners with the valve closed. Soapy water
shows bubbles forming at the regulator vent, but nowhere else. I
would just replace the tank, but I can't right now due to an injury.

Thanks!
Andy