From ahicks@mailhost.nmt.edu Mon Jun 10 22:28:56 1996
To: ahicks@mailhost.nmt.edu
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Date: Thu, 30 May 1996 21:09:05 -0400 (EDT)
From: aquaedu@shore.intercom.net
Subject: [8850] Lowering pH (phosphoric acid source)

Hi All;

Saw the post looking for phosphoric acid to lower pH.  I
have same in both diluted (8.5%) and tech grade (85%). 
Suggest using the dilute, lots easier to handle, and LOTS
easier to adjust pH with, the strong blend can swing pH FAST
after you pass buffering point.

If you are trying to RAISE your pH, I suggest using
Potassium Hydroxide.  Supplies K, and DOESN'T salt up the
growing media as sodium hydroxide does. Once again, have it
in both concentrated (flake) form and 10-1 dilute form. 
Once again, unless you are using it for MAJOR size pH shift,
use the dilute, lots easier to handle and use.

These are the chemicals that most major hydroponic growers
use for pH adjustment, they WORK!

Anyone else wanting to join the rockwool trial, email me.

Scott Jones
Hydro/Aquatic Technologies
specializing in hydroponics, aquaponics, and aquaculture
aquaedu@shore.intercom.net
http://www.intercom.net/biz/aquaedu/hatech/