Circupool and my Taylor reading 2 different salinity

[dannieboiz]

I fired up my swg today, I added 400lbs of salt to my 20k pool, which was supposed to be 2400ppm

I tested with the Taylor test kit by one drop of the first agent then proceeded to adding one drop at a time until it turns to a red color. Counted 27 drops which is 5400ppm

However circupool reads 2300-2400ppm which lines up with my salt addition. Did I mess up somewhere?

 

[Yaniv]

Run the pump for 24 hours and brush the bottom of the pool let the salt dissolve before you test levels.

 

[dannieboiz]

I added salt since yesterday and it was running all night
I turned off the breaker for half a day while I was installing the swg. I'll keep the pump running tonight and brush tomorrow and test again tomorrow night.

 

[pooldv]

It takes 24 to 48 hours for the salt to fully dissolve and mix in the water. Salt readings from SWGs and salt tests can be up to +/- 400 ppm. They are really "ballpark" tests.

 

[JoyfulNoise]

Did you use a 25mL water sample or a 10mL water sample? The K-1766 uses a 10mL water sample (this is a common mistake). If you accidentally used a 25mL sample then the titration is 80ppm/drop.

If you multiply your 5400ppm by (80/200), then you get 2160ppm which is dead on with what your cell is reporting.

 

[dannieboiz]

I used only 10ml of water

Also, after running for the night then circupool isnreading 3400 ppm average. I'll check again later today