pentair ic40 showing too high of a salt reading

aaron_w_o

Bronze Supporter
Apr 15, 2018
148
ottawa, ontario, canada
Pool Size
40000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-20
My easy touch says my salt level is 4100ppm.
I've had the water tested twice at pool stores and it comes back around 3300.
I also tested it myself using the TFP test kit and it was like 3000.

does this mean there is a bad sensor somewhere? or is the value on the easytouch/ic40 known to be off? I would think the pool software uses this salt value to decide how to run the SWG?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,344
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
That level of error is more than normal. Pentair SWCG runs independently of the ET, it just sends a salt reading at startup and every 12 hours if left running that long.

Is the SWCG happy? Green light for salt? Generating chlorine? If so, I would not worry about it.
 
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