Quote:
Originally Posted by Reef Pilot
Does your 3:00 minute timer come on after pressing C2?
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Yes.
Quote:
Originally Posted by DSlater
Do you feel your PO4 readings are high, low, or just inaccurate?
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The readings are unusually low.
Quote:
Originally Posted by DSlater
"Hello,
The HI 713 is not designed to test salt water but fresh water.
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Well that is certainly interesting. I checked on various online vendors and every vendor I checked listed the HI713 as marine and freshwater. I checked the Hanna Instruments website and indeed there is no mention of marine use where the HI736 phosphorus checker
does mention marine use. That is something else altogether!
