My kitchen sink has a 15 year old Kitchenaid garbage disposal unit. Recent= ly the drain pipe below has been plugging with ground vegetable matter almo= st daily. The sinks drain into 2" (od) PVC, which in turn drain into a 2-1= /4" cast iron pipe. The clog seems to be in the same place in the iron pip= e, although there is not seam, joint or bend that would make this a suspici= ous location.
Could my problem be the disposal unit, i.e. it's getting old and doesn't pr= operly shred the material, leading to the clogs?
Why the clog happens at the same location in a straight section of pipe s]i= s beyond me.
Right now my plan is to cut out the iron pipe and replace it with PVC in th= e hopes that there is something inside the pipe causing the clogs.
Anyone have any other suggestions?
Thanks,
Ian