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>> BY FAR,

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THE MOST COMMON QUESTION

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WE GET ASKED

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AS ASTRONAUTS IS...

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SO, LET'S TAKE A, UH,

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A PEEK AT THE PROCESS.

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THIS COMPARTMENT

8
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IS CALLED THE W.H.C.,

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THE NASA ACRONYM FOR

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"WASTE AND HYGIENE COMPARTMENT,"

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I THINK.

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WE JUST KNOW IT AS W.H.C.

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IT'S INSIDE THIS, UH, THIS--

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WE CALL THIS A STALL,

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WHICH IS A, UH,

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A COUPLE OF WALLS AND A DOOR

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TO GIVE YOU SOME PRIVACY,

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BECAUSE YOU'RE RIGHT

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IN THE MIDDLE OF NODE THREE

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WITH A TREADMILL

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ON ONE SIDE OF THE TOILET,

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THE WEIGHT MACHINE

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WE CALL A.R.E.D.

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ON THE OTHER SIDE,

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AND DOWN IN THE FLOOR,

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OUR AWESOME WINDOW

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CALLED THE CUPOLA.

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AND THIS IS A HIGH-TRAFFIC AREA,

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PEOPLE ARE COMING AND GOING,

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UH, SO YOU NEED THE PRIVACY.

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FIRST OF ALL, THE DESIRE TO GO,

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THE NEED TO GO-TO GO

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IS VERY SIMILAR AS ON EARTH,

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WHERE YOU JUST KNOW

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YOU HAVE TO GO.

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IT DOESN'T FEEL ANY DIFFERENT

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BECAUSE THE FLUID MIGHT BE

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FLOATING IN YOUR BLADDER

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OR SOMETHING-- N-NO.

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THAT'S-- IT-IT'S

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JUST THE EXACT SAME,

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UH, SENSATION.

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YOU KNOW YOU GOTTA GO.

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EITHER ONE.

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NUMBER ONE OR NUMBER TWO.

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SO YOU'VE ALREADY--

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YOU'VE DECIDED THAT.

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YOU FLOAT INTO THE W.H.C.

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AND WE HAVE THE TOILET...

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[ CHOIR SINGING ]

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[ FLUSHING ]

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WHICH CONSISTS OF A SEAT,

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AND A METAL BUCKET

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THAT WE CALL [ INDISTINCT ]

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WHICH IS A RUSSIAN ACRONYM

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FOR SOMETHING.

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CONTAINER OF SOMETHING.

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AND, UM, BUT IT-IT HOLDS ABOUT--

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DEPENDING ON

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HOW MANY PEOPLE ARE HERE,

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IT HOLDS ABOUT, UM,

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MAYBE 30 DEPOSITS.

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[ CHA-CHING ]

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AND WE'LL, UH, WE'LL

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TALK ABOUT THAT IN A SECOND.

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THE URINE GOES

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INTO THIS HOSE RIGHT HERE,

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AND THIS VALVE

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IS WHAT ACTIVATES

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THE WHOLE SYSTEM.

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OKAY, TH-THESE ARE

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THE TWO PRIMARY CONTROL PANELS

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FOR THE W.H.C.

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WHEN THE SYSTEM IS

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READY FOR USE, IT'S A "V."

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THIS MEANS IT'S

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GOING TO THE U.P.A.

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SO WE SAY "CHECK THAT

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IT'S V-TO-P."

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ALL RIGHT,

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NOW WE'RE ON THE INSIDE

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OF THE HYGIENE COMPARTMENT.

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CLOSE THE DOOR,

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SO THAT YOU HAVE YOUR PRIVACY.

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YOU TAKE THE FUNNEL.

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THIS KNOB RIGHT HERE

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ACTIVATES THE WHOLE SYSTEM.

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IT'S VERY, VERY,

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UH, CONVENIENT,

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BECAUSE IT'S JUST ONE VALVE

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OPERATES IT ALL.

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BUT SHOULD THE-- IN THE EVENT

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THAT YOU, UH, FORGET

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HOW THE SYSTEM OPERATES,

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OR YOU'RE BRAND NEW HERE,

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AND YOU JUST WANNA

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DOUBLE-CHECK,

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IN GOOD NASA FASHION,

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WE HAVE A CHECKLIST.

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[ DING ]

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THIS IS CALLED,

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UH, PROCEDURE 2.301.

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THE NO-- W.H.C.

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NOMINAL OPERATIONS CUE CARD,

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AND IT'S GOT SEVERAL BLOCKS

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FOR OPERATIONS.

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SO THERE'S TWO DIFFERENT WAYS

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THE-- WHERE THE PEE CAN GO.

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IT CAN JUST GO INTO A BUCKET,

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WHICH IS CALLED A [ INDISTINCT ]

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AND, UH, ESSENTIALLY

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YOU'RE JUST F-- PEEING

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UNTIL THAT BUCKET'S FILLED UP,

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AND THEN YOU HAVE

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TO SWAP OUT THE BUCKET.

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OR YOU CAN CONFIGURE

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W.H.C. TO U.P.A.,

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UH, URINE PROCESSOR ASSEMBLY,

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AND, UH, AND THAT WAY,

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THE URINE IS GOING RIGHT IN--

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DIRECTLY INTO THE SYSTEM,

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AND THAT'S THE WAY

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WE NORMALLY KEEP IT, UH,

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AS MOST CONVENIENT

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FOR THE CREW MEMBERS,

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'CAUSE YOU'RE NOT CONSTANTLY

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CHANGING OUT A TANK.

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SO THERE'S COUPLE BLOCKS

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THAT TELL YOU HOW TO MAKE

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THOSE-- THO-THOSE CHANGES,

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AND, UH, AND SOME

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DETAILED STEPS,

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IF YOU NEED TO KNOW

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HOW EXACTLY TO DO IT.

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AND IN CASE THINGS GO WRONG--

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LIKE THE HARDWARE,

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NOT YOURSELF--

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THERE'S THE W.H.C.

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MALFUNCTIONS CUE CARD.

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AND WE THOUGHT-

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THOUGHT OF ALL THE DIFFERENT,

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LIKE, COMBINATIONS

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IN THE FAILURE MODES,

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AND-AND, UH, AT THE BOTTOM LINE

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IS THAT IF THERE'S A RED LIGHT,

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WE TALK TO THE GROUND,

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AND TOGETHER, WE-WE FIGURE OUT

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THE PATH FORWARD.

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OKAY, BACK TO NORMAL OPERATIONS.

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TIME TO GO.

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YOU TAKE THE VALVE,

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AND, UH...

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[ MACHINE WHIRRING ]

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YOU TURN IT ON.

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YOU HEAR THE FAN NOISE,

156
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CHECK FOR AIR FLOW,

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I'LL SHOW YOU THAT THERE IS,

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IN FACT, AIR FLOW.

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SO, LITTLE BIT OF AIR FLOW,

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AND THAT HELPS EVERYTHING

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FLOW IN THE RIGHT DIRECTION.

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WE'VE GOT OUR, UH, SIMULATOR.

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AND...

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THAT'S WHERE YOUR BUSINESS GOES.

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YOU COMPLETE.

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YOU WANNA BE A GOOD CREW MEMBER,

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SO YOU MAKE SURE

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THAT YOU WIPE OFF

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THE EXCESS.

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USE A DISINFECTANT WIPE

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OCCASIONALLY OR OFTEN.

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AND THEN YOU SIMPLY

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TURN THE VALVE OFF.

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BUT I WANNA SHOW YOU

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NUMBER TWO AS WELL,

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SO I'LL LEAVE IT RUNNING,

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AND WE'LL ROLL RIGHT INTO THAT.

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OKAY, WHEN IT IS TIME TO GO,

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YOU FLIP THIS LEVER HERE,

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AND THAT LIFTS UP THE LID.

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THE SEAT HERE IS ABOUT,

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OH, 5 OR 6 INCHES

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IN DIAMETER,

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AND THERE'S, UH,

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A PLASTIC LINER IN THERE,

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WHICH-- WHERE YOUR

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DEPOSIT GOES.

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WHAT I HAVE HERE

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IS GREEN BEANS AND MUSHROOMS,

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AND I DO NOT LIKE MUSHROOMS,

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SO I DON'T MIND CONTRIBUTING

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THIS PIECE OF, UH, FOOD

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IN THE NAME OF EDUCATION.

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SO PRETEND I ATE THIS YESTERDAY,

195
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AND NOW IT GOES INTO THERE.

196
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YOU CLEAN YOURSELF,

197
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AND THE WIPES GO

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INTO THERE AS WELL.

199
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YOU TAKE THIS RED TAB,

200
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YOU PULL IT OFF THE RIM,

201
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AND IT DEPENDS ON HOW FULL

202
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THE CONTAINER IS.

203
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THIS ONE'S ABOUT

204
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HALFWAY THROUGH.

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WE DO HAVE, UH, A STICK,

206
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AND YOU PUSH IT DOWN IN THERE

207
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WITH ALL ITS OTHER FRIENDS,

208
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AND THEN IT'S TIME

209
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TO PUT A NEW BAG ON.

210
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TO PUT A NEW BAG ON,

211
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YOU SEPARATE-- PULL THE--

212
00:06:31,557 --> 00:06:33,259
IT'S LIKE A HAIR SCRUNCHIE.

213
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GET IT ALL SO IT HAS

214
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MAX CAPACITY THERE,

215
00:06:36,729 --> 00:06:39,298
AND READY TO GO.

216
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CLOSE IT UP,

217
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CLOSE THE LID,

218
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NOW YOU'VE GONE NUMBER ONE,

219
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NUMBER TWO,

220
00:06:46,405 --> 00:06:47,673
YOU CLEANED YOURSELF UP,

221
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AND, UH, IT'S TIME

222
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TO TURN THE SYSTEM OFF.

223
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YOU JUST TAKE THIS VALVE.

224
00:06:52,211 --> 00:06:53,780
[ STOPS WHIRRING ]

225
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ROTATE IT TO "OFF."

226
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THE FAN SPINS DOWN,

227
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THE SYSTEM CHECKS ITSELF,

228
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ALL THE LIGHTS GO OUT,

229
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AND YOU'RE DONE.

230
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SO CONGRATULATIONS,

231
00:07:04,323 --> 00:07:06,159
YOU JUST USED THE W.H.C.

232
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FOR THE FIRST TIME,

233
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AND YOU, UH, LEARNED

234
00:07:07,827 --> 00:07:08,728
ABOUT THE PROCESS.

235
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HOPE IT'S EDUCATIONAL,

236
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BUT I DON'T THINK

237
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IT'S GONNA LESSEN

238
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THE AMOUNT OF TIMES

239
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I HAVE TO ANSWER

240
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THAT QUESTION.