I saw something on another pool site (NOT known for its water balancing advice) that adding MA in a single stream in the deep end would lower pH and alkalinity but that dribbling it around the pool would only lower pH and not have much of an effect on alkalinity.

This didn't sound right to me, but thought I'd put it out here to get the water-balancing experts' opinions. If somehow it IS true, well, then I'll definitely be changing my distribution method!