My sink drains to a gollon jug. The sink drain hose on the "T" is just doubled over and tied off. I plan to do away with it. As for the bronze or copper "T" I can't even see it under multiple layers of silicone.
I plan to yank that all off and redo the whole shebang. While silicone makes a good caulk or gasket material, it is a lousy topping material. That's where the leak is. Just a minor weeping where water infiltrates between layers of caulk.
Thanks for the pics of the obm mount. That's the exact one I've got. I don't think I need any replacement parts, I just need to beef up or maybe just tighten the through hull attachment. That is where the play seems to be.
We're still trying to come up with a name - the usual problems, not too goofy and not too common. So far the list of possibles is getting longer not shorter.