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How Long Do Salt Water Pools Last?
It comes down to how much regular maintenance and upkeep you do, more so than the system itself. Salt cells often only have a 3-5 year lifespan, after which they reduce their chlorine output potential. Replacement cells can be costly. Lifespan can be extended with regular cleaning of the salt cells in the generator with a mild acid solution to dissolve calcium scale that accumulates on the energized metal plates. Some advanced but more expensive salt generator systems are self-cleaning.
Are There Any Salt Water Pool Health Risks?
Saltwater pools are not chlorine-free. The filters convert salt to chlorine through electrolysis. This process could slightly reduce the overall chlorine content compared to chlorine-treated pools. Therefore, you can reduce the risks of potential side effects from exposure to chlorine with a saltwater system.
You will likely need all the additional chemicals used in chlorine-treated pools in a saltwater pool, just not the straight chlorine itself. These chemicals could include cyanuric acid, pH balancers, algaecides, clarifiers, or occasionally sanitizers like chlorine tabs. Often the same chemicals used to shock the pool are used in chlorine pools. At a chemical level, the two are more similar than you might initially expect. Many still argue that the need for these chemicals is reduced with a saltwater pool versus chlorine.
What are the Cons of a Salt Water Pool?
Salt generators are a higher upfront cost and can have a short lifespan of 3-5 years. They also require more electricity to function. You will consume more energy and have higher utility bills. Depending on the source of your electricity, the ecological footprint of greater energy use can range drastically.
Salt can corrode and fade certain types of metals and rubbers. You'll want specific appliances designed for saltwater, and a little bit of regular maintenance will dramatically extend their lifespan. Salt can also potentially damage areas surrounding the pool like tile or certain types of stone. Install a sealant over these if near a saltwater pool.
Salt generators often can't produce chlorine if temperatures are below 60° F/15° C. You'll want chlorine treatments for times when the temperature drops.
How Can You Reduce Energy Use With Salt Water Pools?
To reduce energy consumption, pool owners can run pumps less frequently while still running enough to keep algae from growing in the pool. You can program variable speed pumps to meet specific requirements for your pool and run as needed. Salt generators can only run as necessary to maintain the minimum level of chlorine required to reduce algae growth. Try to purchase ENERGY STAR-rated pumps.
Home energy monitoring systems can help determine how much power is consumed by individual appliances like pool filters.
Tom Saxton
Based in Washington State, Tom's education focuses on holistic land management that sustainably grows renewable building materials in a way that replenishes natural systems. His interest is in building systems that combine old techniques and modern science.
