Sunset Rv Bonny Lake WA Sold 5th Wheel coach without clhecking sewer which after 7 days of repairs still doesn't flush! Bonny Lake Washington

After purching an RV from this company, we drove it back to our homebase in CA.  After only 6 days we opened the sewer gateway valve to find that the unit had been sold to us with the holding tank full of dried crap.  When we returned the unit to WA it took more than 8 days for the Sunset RV Service Center to fix the sewer problem.  We went to use the Coach after a two week vacation with family only to have the sewer back-up again.  We paid for motel & fuel to travel back to WA to have the issue unresolved.  Never have I incurred such poor Customer Service.