Yes, this is possible on SMP. I've never done it, but I have heard it's possible. I think it's in the "server.properties" file. Hopefully I'm not thinking of a mod here.... As I said, I've never done SMP, so I really can't say anything more than what I've told you. Hopefully there's a "server.properties" file (or similar) somewhere, and that you find it, and that it allows you to change the water level. Good luck on that... :/ Mouser X over and out.