I would suggest you call the dealer that sold you the coach and let them know that you are not a happy camper and this should have been caught caught the PDI (pre delivery inspection) that you paid for. Have them send someone to pick up the unit, take it to the dealership and that you will pick it up (set a close date of convenience) and check it to be sure it is repaired before leaving with it. Make arrangements to stay with the unit in the event you find it still leaks.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7