Yes, Rail (get it?)
It's aka an external scupper . . .
Maximizes DT space
Mark,
main pump = Tiger Shark 1.5 hp
(I have a spare plumbed up & ready to go for when it fails . . . )
My wife is fine, we have a taller (2 story extension) ladder.
My father-in-law gave it to me because we eloped . . .
(It was my dream wedding drive-thru in Vegas, jeans & a tee shirt, I didn't say 'I do', I said 'absa-f&^@ing-lutly'