Waste pipes

[Derek Booton]

After 27 years the waste pipes on my Freedom 30 are in need of replacing.
The outside OD on the existing pipes is 1 7/8. Might anyone know the inside ID that was used on these boats?

[GeoffSchultz]

Marine sanitation hose is 1.5" ID.

[sailmon]

I understand someone now sells a marine sanitation hose that is impregnated with a vanilla smell and is supposed to resist transmission of sanitation odors to living space for very long time.

[Derek Booton]

1.5". That's what I surmised , Thanks.
Re the vanilla. It might clash with the bags of lavender that my wife likes to sleep with !
Appreciate the feedback.