when I said 6" I ment out of a total of 24" 6 would be air and 18 would be water.
I got the sensor (calibrated for electric light) and a digital multimeter that it is hooked to.
thats good the error ws that small, I have always done 12" as a base. I know the others are using smaller distances but 12" always seamed more realistic to me.
Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*
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