AeroAqua Mobile Reservoirs for drinking water, sanitation, bio digesting and fire fighting. Made with a Sandaeroblock, it is Sandaeronet's Sanitation component, that can be towed on demand by a Sandaeroship or be a permanent module component of a Sandaeroship.
Biodigesting of organic garbage and sewage can produce methane for thermal/combustion energy and for graphene/oxygen production. Driking water can be filtered or desalinized. Fire fighting water can be projected dispersed/concentrated directly at any altitude.