Hi guys: I don't know if this is the appropriated place to make this suggestion, but I haven't seen any other post that lends itself to such an issue. Seveal weeks ago when I began to wade my pond placing structure, and staying in the water waist deep for extended periods of time with may different types of materials, it occurred to me to get a boster DPT shot (tetnus). You never know what you may or may not run into and "better safe than sorry". Again, may not be the place, but the moderators will decide that. My doctor said it was a very smart thing to do. It's the old ounce of prevention is worth a pound of cure, although my wife would like for me to get lock jaw on occassion, as I'm sure most of you would too, by now. heeeee