I purchased my 2011 Big Horn 3610RE prior to Thanksgiving last year. This is my third Fifthwheel, but my first Heartland product. The water from my fresh water tank tastes very similiar to the taste of water in a garden hose that has been in the sun for a few days in the summer time. It will make you want to gag. Also, when connected to city water, I have the same problem until I let it run for a few minutes. Then when I do not use it for a couple of hours, the taste returns although not as strong as before. I have flushed the system multiple times and have used the recommended bleach cleaning method to no avail. All of my water hoses are new. I have a Brita water pitcher I use for drinking water and even that does not take all of the foul taste away. Has anyone else had this problem? Anyone have any recommendations? I have never had this problem with my previous units.