Dispenser creating infinite water source?

The dispensers dispensing water is broken. You can't turn the water off, or is that how they made it work? It suppose to turn off/suck the water back in instead of spitting the empty bucket out.

Its probably just the seed you are in. My seed there are mineshafts, caves, and caverns everywhere. I have been getting tired of random water sources spawning from water dispensers though. It makes large hostile mob farms virtually useless when it turns
them into a big waterfall.

You should see mine. They are everywhere under the overhang where I'm at growing on my chests, furnaces, half slabs I put down for my infinite water source, and probably my wolf.

What is an Obsidian Tomb? I can tell you that pumpkin is infinitely more valuable than obsidian, since I can create endless obsidian with lava and water, but there are only a few pumpkins on each map (and no pumpkins in some maps).

My guess is that Bioshock Infinite is going to blow everything else out of the water, graphically-speaking.