On Jones’ missions, crewmembers stored their towels in … The crewmen could urinate from either a standing or sitting position. Instead, a long hose …

The astronauts' "toilet" (if we can call it that) was basically a hole in the wall, hooked up to a fan and a baggie. Since the system operates on a vacuum, a tight seal is essential. Astronauts also used the toilet’s closed-off space on the shuttles for changing clothes and wiping themselves down with bath towels. How the space toilet works On the shuttle, urine is handled differently than solid waste, so it doesn't go through the 4-inch opening. Beside the main toilet bowl, there is a hose, which is utilized as a urinal by men and women. Astronauts go through "positional training" on Earth to make sure solid waste goes directly into the narrow opening of these space toilets, Roberts explained. Astronauts use adult diapers during take-offs and landings as well. Going to the bathroom becomes even more challenging when astronauts take a walk outside their spacecraft.
Astronauts must use straps to hold their feet against the floor and pivoting bars swing across the thighs, ensuring the user remains seated. A separate fecal bag was used for each defecation. These diapers are able to hold up to a quart of liquid. Astronauts in spacesuits go to the bathroom in high-tech diapers called Maximum Absorption Garments but the International Space Station use a 19 million dollar toilet that uses suction for pooping in plastic bags and in a hose for urine that’s recycled into drinking water to be used by the crew. Because they can't simply drop their space suit and go, astronauts typically use a superabsorbent adult diaper. A urine collector, located on the wall just below the fecal collector, also utilized airflow as a substitute for gravity to draw the urine through a receiver and hose into a urine collection bag.