5½ cups (about 1½ pounds) thinly sliced pickling cucumbers

1½ tablespoons kosher salt

1 cup thinly sliced sweet onion

1 cup granulated sugar

1 cup white vinegar

½ cup apple cider vinegar

¼ cup light brown sugar

½ teaspoons mustard seeds

½ teaspoon celery seeds

1/8 teaspoon ground turmeric