Anyone have issues with the DH tanks that include the plastic legs? I bought 3 back in Feb 2019 and by Mar 2020 I had one start to leak at the seam where the legs mount. Just use them for fermentation and do a mild cleaning afterwards. Got one replaced on warranty in April, but now the other two are leaking from the same locations. I did a quick Google search and found others have this problem, but so far no one has found a good reason and DH has not said anything about a manufacturing issue or what has been causing the problem.