Is there a way I can drain my holding tank on land? My marina "forgot" to pump it out this past fall, and I just found that out, as I was trying to replace it with a new tank... I would rather do this on land, but I cant seem to get the boat over to the pump out dock. So I need to get it drained somehow. Its only 17 gal, but that still equates to way more weight then I'm lifting out of the bilge. I imagine I need some kind of self priming pump that will screw into the pumpout fitting. Gah. Maybe I'm just better off waiting for the pumpout. Dammit.