1.   I would suggest calling in an experienced plumbing contractor to check out the entire drain-waste and vent system connected to that bathroom.

2.   She investigated dozens of other shipwrecks and appeared on National Geographic television specials to discuss deep-sea vent systems, the warm-water ecosystems caused by volcanic activity.

3.   The plumber says that we have a proper vent system that is not plugged, so there is really nothing he can do.

4.   The plumber says the vent system is OK and there is really nothing he can do about the noise.

5.   The vent system also shuts down.

6.   The researchers also found the water to be much cooler and more acidic than water that surrounds vent systems formed by volcanoes, Karson said.