Keystone Sprinter 5th wheel - camped over the weekend and toilet got stopped up. Have tried everything we could think of -- cannot get it to drain. Help! Obviously need to resolve this quickly!
Since you didn't say which Sprinter 5'er I'll go with something caught in the 45* pipe as it goes through the basement. My suggestion is a short sewer snake, see if you can grab or push the obstruction through to the tank.