I'm assembling the drain right now.

I'm wondering a couple of things:

1. Should I use teflon tape in the 2 inch P-Trap nut?

2. Should I (eventually) install one of two spigots on the laundry sink?
I figure it would be good to have one to wash the soap scum (I assume
that some will accumulate) out of the sink since I'll want to dump the
washed clothes in there to sort (some into dryer, some on hangers to
dry, etc.).