If you mean the 2 hoses that are in the utility bay they are low level drains for the hot and cold water. You open these when winterizing to remove all the water from the system. The a/c drain will be open and WRV placed these in different places depending on the year and model of your coach. Mine come out over the wheels on the passenger side but I know others that come out near the generator.
If you have the Dometic refrigerator there will also be a drain hose from that and this will drip constantly. Sounds as if this is what you have found.
John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD