And of course, a really really deep bath tub. Even if he lives by the ocean, you have to go out pretty darn far to find depths of 500 feet - much farther than I'd care to swim with 500 feet of rope and a big hunk of lead! ;) So maybe the "things required to test" list should include a boat or raft or something, too. ----- Original Message ----- From: "David VanHorn" > > This all assumes that the crush > >pressure of pvc is similar to the burst pressure (which I'm not sure is > >true - definitely check on this before you even think about building > >anything). The end caps are usually rated to the same pressure ratings as > >PVC, so they should work fine also, but be aware of the stress > >concentrations, particularly in flat end caps, and design accordingly. > > Not too hard to test, with some lead, and a 500' rope. > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics