Water bill is huge.
Toilet’s running, jiggle the handle.
Not quite. Sewer dude says there’s a constant flow.
Food color in the tank, wait a few seconds, shows up in the bowl. No problem, replace the stopper.
Turn off the valve. Oops, water still flows … valve shot, must replace. Shut off water main. Here it is, embedded in a root ball near the sidewalk. Main won’t budge. Get more leverage, no joy.
Call EBMUD to have main valve replaced. Not an emergency, wait for Monday.
Nothing is simple.