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pH probes



The pH meter probes used in aquaria need to be cleaned with a soft
toothbrush (baby size) once in a while. The probes seem to get "coated"
and become sluggish. I am using a small hand held one from Hanna
Instruments.

Any experiences or suggestions from the APD gurus?

--
Raj, vu2zap
Bangalore, South India
http://members.xoom.com/ggrk/