Big swings in the conductivity probe

[AlexTm]

Hello,

I have been comparing lately some charts with people that have P4 and I noticed that their conductivity is quite stable. Mine however is not at all.
Here is how it looks at the moment:
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The probes are in the chamber before ATO, so the FW would have to pass the entire system before reaching them.
At the recommendation of Vinny I changed the filter setting to strong but it had no effect.

Comparing my charts with others, this is clearly not normal.

Can you help me with this? What can I do about this?

[Vinny]

What reaction do you get if you place the sensor in a cup of tank water for 24 hours?

[AlexTm]

It is not 24 hours yet but this is the reaction.
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I used water from the tank and got a huge drop in salinity. It seems it has started rising. Will keep you updated after 24h.

[AlexTm]

After ~22h this is how it looks. Seems to still be rising, maybe due to evaporation in part...
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What do you think?

[Vinny]

If your evaporation rate is that high, it would be better to replace with a new cup so you can see if the stability remains.

[AlexTm]

Hello, so I left the probe in a bigger cup for more time.
Here is the graph.
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After first try I moved the probe back to tank, then back to a larger cup and left it there, it is still there and I am not touching the cup in any way.

Later Edit: even longer:
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What can I do about this? The behavior is present since I bought the P4.
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[Vinny]

It may be best to replace the probe.

If it was purchased recently, open a support ticket for further assistance.