> I have a question.. I read somewhere once ( I am not sure if it was this
> mailing list or not.) that a few drops of vinegar can be added to a gallon
of
> water to lower the PH.  I now have access to a man made well that I can 
use
> as water for my plants.  I would like to use this water for my CPs but
> because of the area that I am now living in (northern Florida, USA) I
suspect
> that this water has a high PH.  I would like to lower this natural and 
free
> water ( I have been using distilled water before) as a source for my 
plants.
>  Does anyone know anything about adding vinegar to water?  And is it a
> possibility that vinegar added to the water could harm the plants?
Tracie: I use distilled white vinegar as instructed in the book 'Gardening 
Indoors', with no adverse affect on my plants (including orchids). Add 
approx 1 tsp. per gallon for every pH point you wish to lower the pH. One 
can certainly use more potent, and dangerous acids, but distilled white 
vinegar is cheap, easy, and safe. There has been some discussion on lowering 
pH before, so please peruse the archives for more details..
Yassir