Ammonia days at Wazirabad
When ammonia in the Yamuna at Wazirabad pond rises above 3 ppm, the Wazirabad and Chandrawal plants cut production, by roughly 25–50% in January 2026. DJB's own notice warned of low-pressure supply across Model Town, Shalimar Bagh, Karol Bagh, Civil Lines, Defence Colony, Greater Kailash and more.
How we fix it
A sump-and-tank level controller starts the pump only when the sump actually holds water and stops it before a dry run, so even a thin, short supply is captured in full without anyone standing by the tap.