Intex high salt

[squareace]

I have an Intex metal frame 15'x3.5' agp, with an Intex model 8110 swg add on. The pool was installed approx a month ago and 100 lb of salt was added as recommended by the manf. Everything has been fine until today when I got a high salt code. We have had a couple of hot weeks here in Alabama and an Intex rep told me that was the problem. I don't think [NaCl] went up with temp, but I could be wrong.
Has anyone else experienced this before?

 

[dmanb2b]

evaporation only causes increases in salt levels if you do not replace the water that has been lost...otherwise 100 lbs should have put you right around 3200ppm