They had a kayak bilge pump for eleven bucks and change. These are normally twenty bucks in the store and, with delivery to the closest REI (right in my neighborhood) I have zero shipping costs for my order. It came out to twelve bucks and change with the tax and one more item is marked off of my checklist.
Its a fairly ubiquitous model of sump pump and, as such, I imagine it is reliable and reasonably designed. The blue foam collar in the center keeps it afloat should it go overboard. They send an e-mail when it arrives at my local REI and I can swing by and pick it up at my convenience. I feel safer already and I saved about eight bucks!