Thank you very much for responding, the temperature was lowered since this started in November and it was hot, there the temperature dropped. In August I changed the anode. and I checked the cold water inlet, it was intact and well attached to the structure. I can only think of the tartar tank at the base of the hot water tank, a situation that I think makes the homogeneous and continuous transmission of heat difficult. That is why I wanted to listen to opinions since I will inevitably have to empty it and review it, so I look forward to any help that can provide a solution and very grateful to everyone.