There are many benefits to operating a salt water pool. The benefits include softer water, lower cost of operation, and no chloramines. Many people believe that a salt water pool will be maintenance free. Although there is less maintenance required with a salt water system, there are still necessary steps required to maintain a stable pool.
Weekly, test the pool water for Free Chlorine and pH. The water can be tested using test strips or by a drop test kit. The Free Chlorine level should be 1-3 ppm. The chlorine can be adjusted by the output control on the control box or cell. The pH should be maintained at 7.2-7.6. The pH can be lowered with muriatic acid or raised with soda ash or sodium bicarbonate. Please review your owner's manual for specific ideal levels.
Monthly, test the pool water for Salt, Alkalinity, Stabilizer, and Calcium. The water can be tested using test strips or by a drop test kit. Please review your owner's manual for specific ideal levels and make adjustments accordingly. Note: Most salt chlorinators will display a salt reading. However, it is a good practice to test the salt yourself in case the salt chlorinator needs to be recalibrated.
To maintain maximum performance, it is recommended that you open and visually inspect the cell every 3 months. Most salt chlorinators will remind you to do this by a flashing "Inspect Cell" light on the control box. Once removed, inspect the inside of the cell for scale build up or any debris that may have bypassed the filter. If no deposits are visable, reinstall. If deposits are seen, use a high pressure garden hose and try to flush the scale off. If this is not successful, use a plastic or wood tool (do not use metal as this will scratch the coating off the plates) and scrape deposits off of plates. If flushing and scraping are unsuccessful, a mild acid wash will be required. Please refer to your owner's manual for specific instructions. Most manufacturers suggest a 4:1 ratio of water to muriatic acid (one gallon of water to one quart of acid). Always add acid to water and never water to acid. Pour the solution into a container to a level where the solution will reach the top of the cell but not the cable (some cables can be removed from the cell). The cell should soak for a few minutes and then rinsed off with a garden hose. Reinstall cell once it is cleaned.
To winterize the salt chlorinator, most manufactures recommend that the flow switch and salt cell be removed from the plumbing and stored inside out of the elements. There are dummy cells available that can go in place of the real salt cell during the winter months. The control box can withstand freezing temperatures and can remain installed. For warmer climates, where winterizing is not necessary, run the pump continuosly if a freeze is expected.