2 years ago my water cooling tank started leaking. I attempted to repair, no good. I removed the tank and used hoses to bypass it. no more leak. But the bottom drawer started freezing everything in it. adjusted control on side all the way off. Still freezes. thought maybe it NEEDS the tank to work correctly, nope, found out the replacement is a coil of plastic tubing for $56. Anyone had this problem? everything else works fine.