Assuming the department of utilities report for drinking water quality for citizens doesn't include "chloramine" in a keyword search (just to be sure); then is there a benefit(s) to using vitamin c crystals over Ph down drops?Letting water stand will allow chlorine to dissipate but chloramines are a stronger more persistent chemical. It will not break down on it's own, hence if you have chloramines you need a specific filter or the vit c trick.