Has anyone ever repaired or replaced the Kitchen grey tank on this model. I've had this unit for a little over a year and have recently discovered a leak in the front grey tank at the main discharge from the tank. It appears that it wasn't right at install and they used some kind of grey sealant and a radiator type hose clamp to seal it, as that is where the leak is. I have opened the belly and it appears to me that the tank was dropped in place from above before the floor was installed, also neither grey tank is secured as I can raise them up, a little. Unless I am missing something, this is **** poor design. Any info greatly appreciated.