Quote Originally Posted by KurtV
I don't think you can "pull" dissolved oxygen from water with suction. If you could oxygen from water that easily, you probably would have been using a device that does that instead of a tank for your dives. (There are some devices for diving that allow you to extract breathable oxygen from water but I don't think the methodology is simple suction.)

Trying to think a little out of the box, is there any way you could drill a hole in the concrete chunk, insert a lead anchor, thread a lag bolt into the anchor, and pull the chunk out with a big pair of pliers?


You guys are good........................lots of good stuff here. As I sit up here on the fence though, I would have to say I like the drill and pull method the best..........I would try that.