Herbs: Testing pH of water, 1 by rick7

rick7 wrote:
I bought some "ph Down" solution from General Hydroponics from my local hydroponics store, so I know I'm going to be able to get my water down to a neutral pH. But I was wondering if folks here had any thoughts about what specific effects would typically show up with growing herbs indoors using pH 9 water.

Here's a sample basil leaf showing gnarling and crinkling, though the oregano and thyme don't have this. Any thoughts about if could this be a consequence of the very alkaline water?