When the time comes to add salt, first test for salt again using the drop method that came with the test kit. Then use pool math to determine the amount of salt needed. Ensure SWCG is set to ZERO output. Add 80% of what is required, run pump continuously, brush the sides and bottom of pool to let it mix real well. Test after 24 to 36 hrs to ensure it all mixed. Then use pool math app to determine how much is needed to hit final target. Add and brush thouroughly. Test again after 24 hrs. if at right level turn on SWCG.
salt stores well so long as it is kept dry. I put mine in a plastic container with a top that you can purchase at Target or Walmart.