I have a new SWG, installed last year. I noticed that the higher the temperature of the water goes, the lower the reading of the salt level goes. I called the Manufacturer and they said this is normal. I had another one for over 9 yrs before replacing this one and I don't remember it doing this. The fluctuation isn't great, just a hundred up or down but I wanted to ask here and see if this is something I should worry about and call them back and demand action. Water is great. One thing I notice is I have to run this unit higher, like at 50 % all the time whereas when I got my other one when it was new I had to keep it at 20 % or shut it off a lot because the chlorine would get too high. I wonder if they now make them to put out weaker and therefore you have to run them longer and they wear out faster, more money for them when it gives out and you have to replace it. Thanks for the help.