salinity probe

[jose hernandez]

so ive been noticing that my salt levels go down during the night but go back up during the day is this normal i have the apex salinity probe

 

[mdb_talon]

I dont have an apex or salinity probe, but generally speaking I would not expect salinity to fluctuate significantly throughout the day/night cycle. Temperature can have an impact and of course evap. If you have an ATO I would expect any fluctuation to be more random though (and very small). If you manually topoff at night that could explain it.

If I understand how the probes work I assume electrical interference could cause variations as well, but not sure why that would only happen at night in your case.

 

[jose hernandez]

I HAVE IT IN MY REUTRN SECTION BUT IT WASNT DOING THIS BEFORE I JUST CALIBRATED IT A COUPLE OF WEEKS AGO

 

[KrispyKashew]

How much of a swing are you seeing. I sometimes see a similar pattern but it is very small. It usually will swing about .2ppt but fusion makes it look like a much wilder swing because of how the graph scale is. I believe my levels are affected by keeping the house at a much cooler temp at night so much less evaporation. My salinity probe does some wild things anyway so I don't hold much stock in what it is reading.

 

[jose hernandez]

Yesterday’s reading 28.3 went up to 35.1

 

[KrispyKashew]

Yesterday’s reading 28.3 went up to 35.1

Yeah thats a much Higher swing than I have seen. Have you tried calibrating and/or verifying with another tool? Conductivity probes are all kinda wonky ime. I dont trust mine enough to run anything other than alarms.

 

[jose hernandez]

gonna cross check it with my hanna

 

[Studjunior]

I just set up my new APEX system and I'm also getting she same type of wild swings in my salinity. The salinity will slowly drop 4-5 points during the course of the day and then randomly just just back up 5 or so points. Did you find any solution to fix this issue?? Thanks,