How long between adding and testing? What size was the salt?
Ok Salt yesterday was 3000 ppm and today after 1 40 lb bag of salt, it's 3800 ppm. My intellichlor says low salt still maybe it takes some time to register?
15 to 18k seems plausible.
You can't really go by salt change since the results are not super exact.
Using 121oz of 8.25% bleach, from 1.5 -> 10.4 will happen in a pool of 9400 gallons. I wasn't expecting the chlorine to rise that much. Aka, making your pool appear smaller.
Is it a freeform pool or what?
What is the approximate surface area?
I'll revise my estimate to about 12,000 to 14,000 gallons.
To get the surface area, you can make a scale drawing on graph paper, count the squares and multiply by the area of each square.
Then, you multiply by average depth and then multiply by 7.5 to get gallons.
Is there not a Walmart nearby, or are you Walmart averse? That's the cheapest place to get salt near me, and it's still almost $6/ bag.
I'm walmart averse.
Did you try cycling the power to the SWG off then back on? The unit only checks the salt level daily so try turning it off and on. Your salt is not low.
The Sanitizer Output section is where you adjust the run percentage of the SWG. This adjusts how much chlorine the unit makes.
You may want to read up on the manual, starting on pg7 at: https://www.pentairpool.com/~/media/websites/pool/downloads/sanitizers/manuals/intellichlor_owners_manual_version_3_units_after_nov_2011_english.pdf