Large scale industrialisation of the textile manufacturing sector since the 1980’s led to an explosive growth of self built urban settlements in the Bandung River Basin. Rural villages transformed overnight into highly polluted and unhealthy live-work environments, into so-called industrial kampungs. Urban utility networks, like piped water and sewage systems, are inadequate to support this development, resulting in illegal extraction of groundwater resources, dumping of (sewage-) waste into surface water, high costs for bottled water and ecological degradation. In this unplanned high density industrial context there is a need and potential for a collective off-the-grid circular water system that benefits communities, industries and governments while acting as a driver for spatial quality and well-being. By closely analysing the status quo and valuable historical examples of water cycles we aim to jointly re-think and co-design innovative low-tech interventions for harvesting, purifying and distributing water in a community-based circular way.