[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: pH monitor

To: "Andrew Bolling" <aj172 at juno_com>, " Kevin Zippel" <kczippel at worldnet_att.net>, " Ashley Sligh" <asligh at hotmail_com>, " plants" <Aquatic-Plants at actwin_com>
Subject: Re: pH monitor
From: "Chuck Gadd" <cgadd at cfxc_com>
Date: Mon, 29 Jan 2001 18:58:42 -0700
References: <20010123.114351.-154053.1.AJ172 at juno_com>

As a follow up, Andrew Bolling wrote to me about a method that might be
able to rejuvenate my old pH probe.   The probe had been stored and
shipped to me dry.   At the time, the readings were jumping .2 or .3
pH points.   I followed Andrews advice (soak in an acid solution, then
soak in a saturated potassium solution), and the probe readings stabilized,
moving about 0.05 up and down.   I just calibrated the probe today, and it
calibrated fine, and seems to be reading perfectly.   (The readings match
the values of my test kits).

I'll have to see how the long-term stability of the probe is.  I'll
keep a careful eye on the readings for the next month or two.   I'll
plan on getting a new probe if the readings go bad again soon.

--
Chuck Gadd

Prev by Date: Re: Phosphate test kit
Next by Date: Re: pH monitor
Prev by thread: Re: pH monitor
Next by thread: Re: pH monitor
Index(es):
- Date
- Thread