Help! I have a major water leak in my fresh water tank and need to replace it. I will have to call Heartland and get a part number because I cannot find one on the tank itself or any of the documentation I have. But I was wondering if there were any specific retailers that were inexpensive and not poor quality. I live in my RV full time and am on a fixed income, so I am trying to find the cheapest replacement be I can find. Previous patches have failed now for the 3rd time. No more repairs for me, this time I am going to replace it so I don't have this issue again - hopefully. Any suggestions would be greatly appreciated.