another problem i may have not sure my freash water tank has over flow drian on it. manel shows me there is a over flow drain on the passanger side of the trailer. behind the wheels i see it thats ok now i see another one on the other side also i do have one there.is that also a drain line there to i do have some water coming out of that one on and off.i do have a frigidaire refrigerator.some were in my head i think its a drain for the refrigerator.so i guess i need your help is it a second drain for my water tank or the refrigerator. well if that is another overflow drain line and some water is coming out of it.my water tank is over flowing some since water is coming out of it.so im guessing the andersan valve is leaking into my freash water tank.i am hooked up to the water at the park im in. i am going to drain the water tank to day and see what happens.it does show it full by the gages . it is a 2019 bighorn. thank for all your help.