- Joined
- Feb 21, 2020
- Messages
- 68
- Reaction score
- 27
My salinity has dropped significantly an I don’t know why...
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I added RO water to the ATO about two days ago. To do a manual test on the probes, do I need the pouches because I don’t have any.
Will I need the pouch? I don’t have any extras at this timeCan you do a manual test to confirm it is not a probe error?
Yes I doDo you have a refractometer?
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yes I doDo you have a refractometer?
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1.022 is what the refractometer is sayingLets use that to check your Salinity.
Yes I did... it’s saying 1.022Recommend do a manual test ...Refractometer or hydrometer
Yes I did... the fresh water is good... it did not dump itDid you check if the ATO dumped all of the freshwater into the tank?
I was going to do the water change tonight...haven’t done a water change yetmaybe forgot to turn off the top off when doing a water change?
It doesn’t look like it’s tilt or anything like that.. also my ORP has fallen off. It use to be on the display but it’s not any more... the probes don’t seem damaged or anything like that1.022 is approx 30.6ppt so it looks like your probe is working correctly. Some how your top off has added too much RO water. Is your sump level that you top off into, does it look a little higher? Also look at your temp, has dropped by almost 1 degree.
32.6ppt = 1.0246sg
29.8 = 1.0224sg
And you measured 1.022 on the refractometer. To me probe is good, ATO might have added too much.


