[FPSPACE] MSNBC (Oberg): Space station struggles with balky toilet
LARRY KLAES
ljk4 at msn.com
Tue May 27 14:13:16 EDT 2008
I am waiting for another reporter to find out how much the ISS toilet cost
and then make some comment about how NASA spends so many millions of
taxpayers' money on a space commode that doesn't work.
Larry
>From: "Jim Oberg" <jeoberg at comcast.net>
>To: <fpspace at friends-partners.org>
>Subject: [FPSPACE] MSNBC (Oberg): Space station struggles with balky toilet
>Date: Tue, 27 May 2008 12:23:52 -0500
>
>MSNBC (Oberg): Space station struggles with balky toilet
>
>It's no joke: Astronauts have to make do until fix is found
>
>http://www.msnbc.msn.com:80/id/24841375/
>
>photo - NASA -- The international space station's toilet relies on vacuum
>equipment and air flow to carry waste away in zero-G. That equipment isn't
>providing enough suction on a regular basis, NASA says.
>
>By James Oberg, NBC News space analyst // Special to MSNBC
>
>May 27, 2008
>
> HOUSTON - Just days before the planned delivery of the international
>space station's largest laboratory, its crew is facing a much more
>down-to-Earth problem: a stopped-up toilet.
>
> This is no laughing matter. The outpost's long-term hygiene and routine
>comfort are now threatened, unless critical spare parts can be identified,
>found and loaded aboard the space shuttle Discovery as it sits on the
>launch pad in Florida.
>
> Long a subject of bathroom humor, these high-tech commodes must use
>fan-driven air flow instead of gravity to transport human waste away from a
>crew member's body and into a sanitary receptacle. Early spaceflights
>didn't even have this method, but relied on bags with sticky openings - and
>an emergency supply of such bags is indeed aboard the space station.
>
> The current round of trouble started last Wednesday in the
>Russian-built Zvezda service module, the station's main living room, as
>noted in a NASA status report: "While using the toilet system in the
>Service Module, the crew heard a loud noise and the fan stopped working.
>After some troubleshooting the crew reported that the air/water separator
>was not working."
>
> Cosmonauts Sergey Volkov and Oleg Kononenko, assisted by NASA astronaut
>Garrett Reismann, tackled the problem immediately. They replaced the
>separator with a spare unit, but told controllers that the toilet didn't
>provide suction. Then they replaced the toilet's filter, which proved to be
>just a fleeting fix.
>
> Mission Control in Moscow told the crew to turn off the toilet and use
>the unit inside their Soyuz transport ship. Designed only to support free
>flight between Earth and space and back, that unit has only enough storage
>capacity for a few days of crew use.
>
> Over the next few days, the toilet was reported "fixed," and NASA's
>daily reports contained messages of "routine maintenance" on the unit. But
>rumors circulated within the space community that the fixes kept breaking.
>
> On Tuesday, NASA spokesman Josh Byerly confirmed that the toilet was
>still balky.
>
> "Over the weekend the crew experienced more trouble with space station
>toilet," he told reporters. "They had thought they had corrected it but the
>same fault returned, and they fixed it again."
>
> The toilet didn't stay fixed for long. "It failed again this morning,"
>he concluded.
>
> Byerly did not address other reports, passed along privately to
>msnbc.com, that a "fabrication flaw" has been discovered in the toilet's
>compressor units. One source in Houston said that the hardware used there
>for crew training may be flown to Florida for launch aboard Discovery, even
>though it too is expected to fail quickly. The source was not authorized to
>discuss the situation publicly, and thus spoke on condition of anonymity.
>
> A major new unit, intended to allow the expansion of crew size from
>three to six members, is being prepared for launch late this year. Until
>then, the current hardware - and the supply of "Apollo bags" for fecal
>collection - may have to suffice. And if previous experience is any guide,
>the Russian engineers and cosmonauts will find McGyver-type solutions to
>make it work.
>
> Over the years, the station's Russian-made life support hardware (such
>as oxygen generators and carbon dioxide scrubbers) has limped along,
>occasionally breaking down and then being fixed or replaced with spares.
>Designed to be robust, and to be easily serviced in orbit, this hardware
>approach has shown resilience and "repairability." That may be just the
>approach required for the life support systems to be used on years-long
>human missions to other planets.
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