Conductivity Variance

[MikeYQM]

I've been running a conductivity probe for a few weeks on my II Plus EX. The system is about 40 net gallons with a temp range of 80.75-81.25. I have an ATO running off doser & level sensor. The doser outputs kalk into a Koralia 240 powerhead pointed away from the probes and dosing does not affect PH or temp.

The conductivity reading has a huge swing from about 26.5ppt to 33ppt. It does this several times a day. What would cause this swing? I believe it makes it impossible to get a precise reading.

I have calibrated the probe several times & believe 33ppt to be accurate.

Thanks,

Mike

 

[AQD_ottawa]

Hi Mike

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Thanks

http://www.reefcentral.com/forums/showthread.php?t=2116715

 

[AQD_ottawa]

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