The Dumping Saga Continues; We completed trip #3 and had our second Galley gray water dump tank failure! After picking up our 27-5L from the dealer in Sept 2013 I went to the dump site to test the repair and it worked. The winterized unit has been in storage until recent trip #3 Mar '14. It is now back in the dealer's shop for technical trouble shooting of electronic dump switch or valve failure. Two failures in three trips is not acceptable!! AVCM Retired and others have you received dependable dumping results? I will update my repair results in about one week. FYI No red light comes on…..on that switch. The dealer said that the last repair was made only checking and reconnecting wire connections to the back of the switch. I pulled the switch and it all looked clean and secure.