My cockpit drains are just barely above the "new" (loaded for cruising) waterline. At that, they are barely below the elbow on my cockpit drains. If I raised the thru-hulls, theyd be higher than my cockpit drains.
My engine exhaust is a couple inches above the waterline but is frequently under water when heeled, getting bounced around, etc. Considered raising it during this haulout but never got around to it. Not sure it needs to be.
-Steve