Date: Wed, 12 Nov 1997 07:57:24 -0500 From: Carl Gustafson <carl.gustafson@cbis.ece.drexel.edu> To: cp@opus.hpl.hp.com Message-Id: <aabcdefg4312$foo@default> Subject: Re: Lowering water pH
Susan Farrington asked:
>In the greenhouse, however, we just have a
>little de-ionizing unit that fills up a trash can with "pure"
>water for the cp's. However, it appears to only remove the
>chlorine and the hardness of the water. It does nothing to
>lower the pH of the water, and the tap water here in St. Louis is
>about 9.0! Is there an easy way to lower the pH of the water
>sitting in the trash can?
How about adding some [sphagnum] peat to the water? Should buffer the water
to a lower pH, primarily by adding humus acids, which not only will bind to
[complex] any calcium ions remaining, but of course lower the pH as well.
Carl G.
Carl Gustafson
(215) 895-1383
===============================================================================
the Computer Vision Center for Vertebrate Brain Mapping
===============================================================================
Imaging and Computer Vision Center | Software Guy
Drexel University | Macintosh spoken here
Philadelphia, Pennsylvania | I'd like to give you my opinion
===============================================================================
This archive was generated by hypermail 2b30 : Tue Jan 02 2001 - 17:31:14 PST