David, that would be a Mike question. For all I know, he is putting it like you're saying. I was needing a word and grabbed sump and probably made it sound wrong. Half inch downward lump under the pump is how I understood the shape he described.
Y'all want to start a pool on what day Mitch will find this thread?
Feel free to mill about the punch bowl, I'll flip the lights a couple times before the next act begins. Gotta go live it first!