Wouldn't it be the same thing if you just added some baking soda to the water before you feed? to help bring ph up?
I have heard of people doing that, and it was recommended in the 8oz under $100 book, but I heard it can lockout nutrients. Not sure how true that is. by the way, the link the guy above posted IS NOT part of grasscity, and I would NOT click it, as I see other people spamming the same posts. Most likely a script or something of the sorts?