[VAL] emptying the black tank

["Nick & Ruth Warren" <nickruthwarren@xxxxxxxxxxx>]

Hello all,

I can't seem to empty the black tank on our 61' Tradewind.  There is a
square pipe sticking out of the side of the trailer just next to the hookup,
I thought all you had to do was pull.  It won't budge, is there something
I'm missing or do I need to apply the "brute force and ingnorance"
technique?

Any ideas?

Ruth Warren & The Tin Can Clan.
Currently on I95, 170 miles north of Miami.