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Saltwater Indoor Pools vs Chlorinated Water Indoor Pools

Saltwater Indoor Pools vs Chlorinated Water Indoor Pools

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Swimming pools, whether indoor or outdoor, provide you the convenience of swimming within the comfort of your own home.  Having one, however, comes at a cost.  Aside from the initial construction of the facility, the bigger challenge is how to maintain and operate your indoor pool.

In the old days, people used pool as a public bath area. The Greeks and Romans built public baths as personal luxuries more than two thousand years ago. In 1837, numerous pools were built around London following improvements in water treatment. Soon after, swimming as a sport grew and became a part of the Olympics in 1896.

In 1920, William Randolph Hearst built a Roman and Greek-themed pool which was surrounded by Roman and Greek statues, facades, and other architecture.  Affluent families then began building swimming pools in their own properties.  Today, modern above ground pools feature robotic fish, various pool shapes, depths, and extra electronically- controlled waves.

Saltwater Indoor Pools

Saltwater indoor pools use a salt chlorine generator, instead of you manually adding chlorine. A generator converts the salt into chlorine through a process called electrolysis. This converter automatically maintains the chlorine level without the need for regular testing, balancing, and monitoring of chlorine level.

For this pool type, the required salinity level is 1/10 of the ocean. The needed salt would be around 3,000 to 4,000 ppm (parts per million).  For new pools, you have to place 40 to 50 lbs of salt for every 2,000 gallons of water.

A salt chlorine generator refers to a machine which has a conversion cell that transforms the salt into pure chlorine. Other parts include the control unit, electrode, filter, flow detector, and pool pump – which has both ends connected to the outlet and inlet of the pool.  Whilst the pool still uses chlorine, the chemical comes from the salt through the use of the salt generator machine. The salt contains chlorine.  Its chemical name is actually sodium chloride, which is made up of chlorine and sodium.

Pros of Salt Chlorine Generator

  • Doesn’t need handling of harsh chemicals;
  • Less maintenance – no adding and storing of chlorine needed;
  • Lower yearly cost;
  • Needs less maintenance compared to chlorinated pools due to enough chlorine produced from salts;
  • No strong chemical odors caused by chlorine because the chlorine is maintained, controlled, and produced in the right level by a chlorine generator;
  • Salt is gentler on the skin and eyes;
  • Salt is less expensive than chlorine; and
  • Saltwater is gentler for your eyes, skin and hair.


  • Chlorine generator runs on electricity and this would add to your bill;
  • Expensive start-up than chlorinated pools because you’ll need a saltwater generator, control panel, filter, and flow detector;
  • May not be suitable with other equipment that are susceptible to salt damage; these could be fixtures, liners, heaters, and underwater lighting;
  • Risks of developing salt ring stains that can lead to corrosion; to mitigate this, invest in salt-resistant accessories; and
  • Needs frequent shocking, cleaning, and checking of cells every year.

Chlorinated Indoor Pools

Chlorinated indoor pools, on the other hand, use granular chlorine to sanitise the water. Other pools use sodium hypochlorite or liquid bleach and calcium hypochlorite or granular tablets that all release a sanitising chemical called hypochlorous acid or HOCI. Chlorine kills algae that cause green pool water and bacteria such as E. coli, a disease-causing microorganism.

Pros of Chlorinated Indoor Pools

  • An effective way of sanitising pool water;
  • Cheaper to install;
  • Doesn’t damage pool accessories and masonry;
  • Doesn’t need electricity because there’s no device needed for chlorine conversion;
  • Doesn’t’ need a chlorine generator in the start-up installation;
  • Easy maintenance;
  • Energy saving; no need to run a chlorine generator;
  • Less extra maintenance caused by microorganism and dirt build-up;
  • Makes pool less green caused by algal bloom;
  • Small upfront investment; and
  • Need few accessories – filters and pumps.


  • Bleached clothing in some coloured ones;
  • Can cause itchiness in some skin types;
  • Higher operational expenses because you’ll need to use the chlorine every week;
  • Risks of chemical contamination on storage;
  • Strong chlorine smell and its fumes; and
  • You’ll need to add the chemical manually.

Safety Precautions

  • Follow the procedures on using, storing and transporting chlorine.
  • Keep the chemicals away from children’s reach.
  • Learn cardiac pulmonary resuscitation for children and adults.
  • Learn swimming skills.
  • Never mix the chlorine with other chemicals as this will cause chemical reactions or even explosion.
  • Never swim alone especially in deeper pool areas.
  • Use a personal floatation device.

Pool Accessories

Keep swimming pool accessories handy and organised such as the following:

  • Cartridge pump;
  • Cleaner set;
  • Filter kit;
  • Filter pump;
  • Liquid test kits;
  • Pool monitors;
  • Steel frame filter;
  • Test Strips; and
  • Vacuum cleaner set


Salt and chlorine are chemicals needed to maintain the cleanliness and safety of your swimming pool.  If you want a pool that is easy to maintain, with fewer issues for health and safety as well as low yearly maintenance cost, choose a saltwater pool. If you want to save on electricity bills, start with low upfront cost and avoid worries of chemical corrosion, choose the chlorinated pool. There’s no perfect pool, and either type could be suitable to your situation.

How can OutbaxCamping help?

OutbaxCamping can help you find durable and specific swimming pool accessories. Since 2012, Outbax has been helping people enjoy outdoor activities and protect them with the right gears and equipment. Learn more at

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