Customer called us out for a clogged sink. Inspected sink and recommended clearing with mini jetter. I also recommended replacing the old garbage disposal. Customer agreed with both. I was unable to clear the clog with jetter or tub gun. Sewer supervisor will be coming out to inspect. I removed the old disposal and installed a new one. Tested to see if it worked and all fittings were tight. Cleaned up put everything back under sink.