Discharging waste water a bit difficult because there is no discharge pit or the like. is. But you can do a lot with your own cassette toilet, you have to walk a number of times. Toilet is free and water is also free, only a measly trickle comes out which is enough to fill your cup. There is no connection for a hose to refill your tank. As the photo shows, there is an opportunity to empty your toilet cassette.