On 1/8/2011 7:45 PM, ShadowTek wrote:
On 2011-01-08, wrote:

What are all these greasy black flaps? What are they from? I don't
put black flaps down my drain. I don't even have any to put.

I noticed something like that I'm my kitchen pipe once. I was under the
impression that they were some sort of fungal growths, like those disk-like
fungi that grow on trees.

Splash guard (or whatever they are called) on the drain to the disposal?
We had them, old and rotting.