In the Comoros, bottled water is a daily necessity rather than a convenience, and the weight of the packs makes home delivery genuinely useful.
Spring water comes from a protected underground source and is bottled as it emerges, with no chemical treatment. It differs from natural mineral water, whose mineral content is stable and monitored, and from purified water, which is treated and then remineralised.
The aisle also covers carbonated drinks in cans and family bottles, fruit juices, and cordials to dilute, which work out much cheaper per glass served.