Question about diy calibration for salinity

[trainbob]

So my next attempt is to use the full volume in Randy’s article and pour it in a bucket and use a power head to mix it

 

[trainbob]

Last post on this thread the volume method and using power head to mix solution was the winner. Calibration fluid measured 1.026 on the Milwaukee ma887 refractometer and 34 ppt on the aquarium solutions accuprobe swing arm