Ok folks here is the update as of today. Camping World determine that the macerator pump was faulty and replaced it. Normally, on a warranty issue service organizations like Camping World still charge for the labor of replacement or at least split the costs 50/50. Camping World told me "it is on us" - no charge. The labor and shop supplies would have amounted to close to $200. Wow! Thank you Camping World.
I did check out the new macerator pump and it works great!
I have installed a dump hose connection to the manual discharge and I now carry a dump hose as a back up. Tested the backup and it works also.