The Host model requires hookups or external dump tank and does not go into the internal holding tanks. We have a portable washer we set in the shower on trips longer than one week and stores on the basement slide tray during those trips. It does not have a dryer but we hang the wet laundry in the bath or clotheslines in our enclosed trailer. Since ours gets used only one or two trips a year, there was no way to justify the built in verses our $100 model. If you travel where laundry rooms are available, you get get multiple loads completed at once. Even our cheap model has not paid for itself verses the laundromat, but the convenience of being able to wash on or off grid was worth our choice.
