Salt Scapes Test Strips ensure you have the proper salt and balancer levels in your pool. Having the correct levels will ensure the best swimmer comfort, equipment protection, and sanitizer efficiency. Saltwater pools need to have water balance levels tested at least twice per week just like traditional chlorine pools. Simply dip the test strip in the water and match to the chart on the bottle. This pack contains 10 strips to test your salt level and 25 strips to test ph, alkalinity, calcium hardness, stabilizer, and chlorine.