I have plumbed in a garbage disposer under kitchen sink yesterday using PVC piping and plumbing glue - pretty much what was there, but I added the garbage disposer.
The problem is, the pipe that comes out from under the kitchen cabinets and goes down there into the floor after the trap is now slightly under load due to the way garbage disposer fits. Trap pushes the pipe down a bit, this pulls the end that is behind the cabinet a bit up. The pipe itself seems to be quite loose when disconnected from the trap as if inside the wall there is some flexible connection(? is it possible?).
Is it normal for sink plumbing to be slightly under load when system is finished or is it absolutely a bad idea and I should re-do everything so that there is no load at all and the pipe that goes into the cabinets and floor is as loose as it gets?