Kenneth here is the kicker about the 33 'imit. Look out your window and you will see plenty of trees that are well over 10 meters. I got cottonwoods nearby that are are about 55 foot tall. Explain that to me. I sit here in total awe about giant sequoia out west at like 300 feet or some thing like that!
Hmmm. Yeah, maybe because in trees the water is travelling through cells/membranes vs "tubes??" I mean, when you cut down a branch or a tree trunk, water stays trapped in the wood, versus flowing freely out of it. Still, an interesting thought....
And, in Denver, at 80% of sea level pressure, a siphon should only be possible to about 27 ft.
Do you know any thong about rerouting drain hoses?
I replaced the hoses on my cockpit drains but didn't reroute any of them to new through-hulls. One thing to be aware of if cutting new through-hull drain points is where those holes will be (with respect to the waterline) when the boat is heeling. Even with Ericson's existing cockpit stern drains, some users report water flowing INTO the cockpit through the stern drain if the boat is heeling enough.
Though they pose winterization problems, an advantage of the deeper, centerline hull drains is that they remain submerged at all normal angles of heel.
