I'm no expert, but I can tell you that you'll want to keep the soil pH at or near 6.5. Slightly higher or lower won't affect nutrients too much, but extremes in alkalinity or acidity can lockout several primary nutrients. That is probably the reason why you're seeing multiple symptoms. The optimum range for soil is between 6.3 and 6.8, so get the runoff in that area, and see if things improve. Also, if you're worried about chlorine in your tap water, just leave a bucket of water sitting out in the open for a few days. The chlorine will be evaporated off after a certain amount of time, though I can't remember exactly how long.

Take care. :jointsmile: