Case Study: i2O Water achieves 235M liters/day saved and scalable, high‑performance IoT with DataStax (Apache Cassandra)

i2O Water Tackles Water Crisis with Apache Cassandra

i2O Water helps utility companies cut leakage and pipe bursts by using IoT smart-pressure systems that capture high-velocity time-series data. Facing rapid growth (over 1.5 TB of sensor data and increasing), the company found Microsoft SQL Server unable to scale or provide the near-real-time performance and cross-data-center availability required for its global deployments.

i2O migrated to Apache Cassandra, a masterless, time-series-friendly distributed database that scales predictably and maintains continuous availability. The move delivered 50–60k writes/sec and 20–40k reads/sec, supports 15,000+ devices across 20+ countries with >99.9% uptime, and enabled measurable impact: ~235 million liters of water saved per day, 40% fewer burst pipes, and roughly 20% reductions in both leakage and pumping energy use.

i2O Water

Mike Williams

IT and Software Director