Houston, we have a problem

WASHINGTON (AP) -- The international space station's lone toilet is broken, leaving the crew with almost nowhere to go. So NASA may order an in-orbit plumbing service call when space shuttle Discovery visits next week.

Until then, the three-man crew will have to make do with a jury-rigged system when they need to urinate.

While one of the crew was using the Russian-made toilet last week, the toilet motor fan stopped working, according to NASA. Since then, the liquid waste gathering part of the toilet has been working on-and-off.

Fortunately, the solid waste collecting part is functioning normally.

Russian officials don't know the cause of the problem, and the crew has been unable to fix it.

The crew has used the toilet on the Soyuz return capsule, but it has a limited capacity. They now are using a backup bag-like collection system that can be connected to the broken toilet, according to NASA public affairs officials.

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"Like any home anywhere, the importance of having a working bathroom is obvious," NASA spokesman Allard Beutel said.

The 7-year-old toilet has broken once before but not for as long a time, said Johnson Space Center spokeswoman Nicole Cloutier in Houston.

Discovery is already set for launch Saturday, with a planned docking with the space station Monday.

Cloutier said NASA officials are considering having some parts flown to Cape Canaveral, Florida, and placed in the shuttle during its countdown, an unusual and delicate situation. Because the shuttle's payload weight is limited and balance carefully calculated, it will be tricky to try to figure out where the parts can go, said Kennedy Space Center spokesman Bill Johnson

Discovery's main payload, a 32,000-pound Japanese laboratory addition, is so big that the shuttle's boom sensor system had to be removed to make room for the lab.

It's not like they can pee off the back of the Space Station . . . or open a window and dump a jug . . . or stop at the nearest fast food place . . . or hold it! This is a major problem!!