The AquaReclaim DF-9 is a building-integrated greywater recovery and purification unit designed for installation in the utility cores of mid-rise residential and commercial structures throughout GLMZ. The system intercepts wastewater from sinks, showers, laundry, and HVAC condensate lines before they reach the municipal sewer outflow, passing the water through a four-stage cascade: mechanical filtration, a bioreactor membrane seeded with engineered Helix Biosystems microbial consortia, UV-C sterilization, and a final electrochemical polishing cell that strips residual pharmaceutical compounds — a critical requirement given the high concentration of Lazarus Pharmaceuticals metabolites documented in GLMZ's water table since the 2070s. Purified output is certified for non-potable reuse including toilet flushing, irrigation of VertiRoot VX-22 columns, and industrial cleaning, reducing a building's municipal water draw by 55–70%.

The DF-9's bioreactor membrane is the system's most technically sophisticated and commercially controlled component — the microbial consortia are Helix Biosystems proprietary strains licensed to Kelpline under an exclusive supply agreement, and the membrane cassettes require replacement every 14–18 months at a cost that represents the majority of the system's ongoing operational expense. Kelpline's service subsidiary handles cassette replacement under mandatory maintenance contracts, with the used cassettes classified as biological waste requiring Kelpline-licensed disposal — a classification that conveniently prevents third-party analysis of what the membranes have filtered out of a building's water supply over their service life.

The DF-9 was initially positioned as a premium sustainability feature for Tier 2 corporate residential developments, but water pricing increases driven by GLMZ's ongoing freshwater management crisis have pushed the system's economics into viability for Tier 3 multi-unit buildings operating as cooperatives or under building management contracts. A significant grey market has emerged around refurbished membrane cassettes — technically illegal under the biological waste classification, but widely used in lower-district installations where the alternative is either unprocessed greywater reuse or full municipal water dependency at rates that consume 18–25% of a lower-tier household's monthly allocation budget.