I'm headed to the boat now with a voltage meter to find out if this thing is, in fact, powered. My understanding is that macerator pumps are not known for their longevity, so, either way, it looks like I'll be tearing this contraption apart. Will update as I proceed...One last thing, I forgot to post this picture that I found on board. It's a laminated card that ID's pump out stations along the Southern California coast. Why would the PO need this if there is no pump out on the deck?