Short slots and precautionary cuts
BMC releases water zone by zone on a published timetable, and in many zones the slot lasts about an hour or two. When lake stock fell to about 23 percent in May 2026, a 10 percent cut began on 15 May, and BMC kept it in place even after the lakes crossed 90 percent in August.
How we fix it
A multi-tank level controller starts the transfer pump as soon as the sump has water, fills each wing's terrace tank in turn and stops before the sump runs dry, so a short slot is never wasted.