Hot take: my starter looked dead for 3 weeks, then I switched to bottled water and it doubled in 2 days
I was feeding my starter every 12 hours with tap water from my kitchen in Tucson and it just sat there flat, maybe rising a quarter inch in the jar. Swapped to the cheap bottled spring water from the grocery store, same flour, same schedule, and by the second morning it was hitting the rubber band I put at the 2 cup mark. Anyone else dealt with city water killing their rise, or was it just the chlorine in mine?