Salt test strips vs. SWG reading

It depends. It is always good to have an independant test. One sign of a failing cell is if the SWG starts reading a salt level well below the actual salt level.

I think the drop based K-1766 kit is more accurate than the strips.

FYI, I installed a new SWG yesterday and it is reporting salt at 2600ppm while I am testing 3200ppm (and a pool store got the same thing). So, it seems that mine is reading a little low ... hopefully this difference is within the accuracy to the 2 testing methods and there is not a problem. I am likely to just add a few more bags of salt to make the SWG happy.
 
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