Valoy, your water drain should be ( facing the couch ) on the right hand side about 6 inched from the tank towards the dinette. I also have those pull rings but I have never been able to pull them up so I just let them be and winterize the unit with the Pink stuff in the lines , I have not had a problem in 3 winters. I also have the sign "Low drain point " on the dinette side but as of yet have been unable to find anything to drain on that side. Again I have not had any problems yet with anything freezing or with leaks.