On my 5th year, backyard NoCal grow. I have learned to fight bugs, etc. i have had good luck, and advice so far. i grow only for my personal use, basically for insomnia, and now for arthritis pain. Seriously has helped me allot. This year my tap ph changed drastically. It went from around 7 to 8 and above. new houses were built near me, could this be the reason?