Quote Originally Posted by JBledsoe View Post
You are correct, there were two honest answers. Your suggestion was taken seriously and I intend to check it. Also the suggestion that my transducer could be covered with scum is valid and will be checked.

The unit worked fine all day except that one spot where it gave a false reading. That led me to think that something was in the water that caused the reading. Can the thermocline cause a false reading? How about a thick cloud of zoo plankton?

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could be leaves settling from the fall... could be theremal.... could be grass dieing back

Is there a current there?