EngineerGeorge

We have a saltwater pool with a Jandy Aquapure 1400 chlorine generator. The Aquapure shows a salt concentration of 3300, and two pool companies show 3400 and 3600 using electronic salt testers. A chemical test at one of the companies came up with 2600. This pool is 60 ft from ocean water and I suspect hurricane irma blew a bunch of seawater into the pool awhile back. My question is: would sea water skew the salt tests relative to a pool which contains only pure pool salt? I am wondering if the additional minerals in sea salt might cause a higher reading on the electronic TDS salt measurements, Maybe I should drain and refill the pool, or perhaps recalibrate the Aquapure to compensate. I am told the 2600ppm reading from the chemical test is the most accurate. Thanks