[NAFEX] pH Meters
Ribes60 at aol.com
Ribes60 at aol.com
Fri Dec 9 09:05:53 EST 2005
I bought a Kelway meter from A. M. Leonard, it was a mid range cost meter. I
had used a cheepy several years ago and found that it often gave erratic
readings. The Kelway seemed to be much better, then I got a load of spent
mushroom soil that was supposed to have a pH of about 6.5 to 7.5. The garden soil
read about 6. the mushroom soil read about 4.5. I applies about 3 to 4 inches
and tilled it in and the reading several weeks later was 6.7. I sent samples
of soil and of the mushroom soil to Penn State and their reading on the
mushroom soil was 7.7.
I called the Kelway company and told them what had happened. They said that
the Kelway was very accurate up to about 7, but from that point up it was very
erratic. There was nothing in the literature indicating this.
Just thought I would pass this on.
Ed Mashburn
Central PA
Zone 5A
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