I am replacing the disposal under my kitchen sink. The new disposal is a littl bigger than the old one and the pipes need to move a little.
The existing drain pipes are 1 1/2" PVC. All glued together.
When I was at the plumbing supply store buying new PVC fittings, a plumber suggested I replace all the 1 1/2" PVC with the smaller, thinner, slip joint fittings to make it easier next time.
I like the idea of easier next time, but it seems it would be better for the sink and the disposal if I kept the drain diameter 1 1/2".
Can I get some opinions on which way to go?