Agreed I’ve melted lps And zoa with high salinity from wrong refractometer. 1.040 : )Melting away too points to either salinity ir lighting. Regarding your readings, i used two refracts that were calibrated and a digital unit which all indicated. 1.023-1.024.
Water sample to LFS WAS 1.031. I used calibration solution by brightwell
but 3 separate devices all reading the same and low that’s pretty crazy, did you change calibration fluids after that?
I have a hydrometer just to double check every now and then I think they don’t get enough love nice and simple mechanism