'''When urine or faeces cannot be used immediately or transported using a Conveyance Technology (i.e. Jerrycans or oil drums) it can be stored onsite in containers or tanks. The Storage Tank must then be moved or emptied into another container for transport. '''
==='''Urine==='''
The Storage Tank should be appropriately sized to accommodate the number of users and the time required to sanitise the urine. Urine collected in small containers (up to 20 litres) can be easily transported and used as fertiliser in the household's own vegetable garden. Larger containers, filled with urine have to be collected by a vehicle and can therefore be transported over longer distances.
To minimize odours, the tank should be filled from the bottom, i.e. the urine should flow down through a pipe and be released near the bottom of the tank; this will prevent the urine from spraying as well as prevent back-flow.
==='''Faeces==='''
Oil drums, or half drums, can be placed directly beneath a toilet to collect faeces. Ash or other drying material has to be added regularly to prevent smells. Toilet paper can also be collected in the oil drum.