2015 Big Country 3700. Four water leaks in the first week. All poor workmanship. All repaired by cutting lines and putting on new crimp clamps. Figured my unit was built on Monday morning as black tank level indictor was connected to the fresh water tank, and the black water empty lever was labeled waste water. When I first tried to open the right front slide the cable pulley pulled it self out of the wall, company only had two screws in it instead if six. Will say that Heartland stood behind that repair 100%. Would I purchase another heartland, you bet I would. Mass produced units will always Have some problems.
