negative magnets against the water will negatively magnetize the water and make it go alkaline. positive magnets against water will make it go acid. yes, the ph actually drops, even in the presence of alkaline material in the water. i know because i was using pos magnets in hydroponics and never had to adjust the ph chemically - a must otherwise.
the energy water is something you should explore. check out the forum here. water is the most maleable substance known to man. it responds to thought quite readily in a laboratory setting. check out dr emoto's groundbreaking work.