Today, NASA recovers over 90% of the water used in space.

Water recycling is paramount for space stations and long-duration missions − an environmental engineer explains how the ISS does it

Source: space
Source Link: https://www.space.com/space-exploration/international-space-station/water-recycling-is-paramount-for-space-stations-and-long-duration-missions-an-environmental-engineer-explains-how-the-iss-does-it