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CF lights and ph probe - followup
Having looked through the archives, and read your responses: I chose the
path of least resistance. I bought a grounding probe a LFS and installed
it: I am now getting identical and stable pH readings when the lights are
on and off.
Just a note: the ballast and the reflectors were already grounded.
Now if I can get rid of this incredibly hard water I have... sounds like and
RO unit is in my future :-)
...john in Tracy, CA