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Now lower it again UNDER water and place at an angle as before
What do you mean, the media can cause?
oh i see, thanks.GHL is Neptunes competitor
the other way, can you tell me some?I would advise using other ways to check your salinity in the meantime. I am not trusting my Apex probe reading at the moment.
no problem, my apex prob is a wierd problem, becaz it does show 35ppt when dipped in calibration solution. Anyway i have neptune support call tomorrow night, hope fully they will figure it out, until then hanna is the one i go with for now.Sorry, missed the first post where you post your parameters. I would go with the 34 as the proper reading. Refractometer and Hanna giving almost same reading, should be fine.
That is pretty sad on the part of Neptune and their probe. After all, most people have their probes in a sump where there is a lot of mixing of air and water.Apex salinity probe notorious for false readings. Its mainly due to trapping of bubbles. Pull it down in the water and turn upside down to allow bubbles to escape. As with mine, tilt it an an angle and leave it that way to allow any bubbles to escape and your reading should be good