Salt water pools are chlorine pools

People assume swimming in a salt water chlorinated pool or spa must be like swimming in the sea, but it is quite different.

The electrolysis process in a salt water swimming pool is achieved by passing the salt water solution through an electrolytic cell which converts sodium chloride (salt) in the water into chlorine gas. When dissolved in the water it becomes sodium hypochlorite (liquid chlorine). So you are in fact producing your own chlorine to sanitise the pool.

The levels of salt required to sanitise a pool can vary and they are between one fifth to one tenth the level of salt in sea water.


There is no doubt a salt water chlorinated pool has less odour and is easier to maintain without the need to handle or store dangerous chemicals. However, the end result can still be harsh on both the skin, allergy sufferers and your pool surrounds and equipment. Mineral pools are also now very popular and these use a variety of salts such as  the Himalayan salt that emulates more of a spa treatment, however the process to convert to chlorine is still the same.


The requirements for chemical balance are the same for electrolytic chlorination, as for traditionally chlorinated pools. Total Alkalinity, pH, Calcium Hardness and chlorine levels should be checked regularly. Chlorine stabiliser (isocyanuric acid) should be added to the pool and maintained at approx 30-50ppm, to reduce chlorine loss due to UV rays.

During periods of high bather load it may be necessary to manually supplement with sodium hypochlorite (liquid chlorine) to maintain correct chlorine levels, and regular super-chlorination or shock dosing should be carried out.


The NKD1 Fresh Water System uses an alternative to salt, being natures minerals such as copper and silver. As the ancient greeks discovered, algae would not grow in copper, and silver had purifying qualities in the water. These minerals remain in the water to constantly sanitise your pool.

Combined with an oxidiser that destroys any phosphates generated from bather load and garden surrounds, the hybrid solution is a constant sanitiser that requires much less running time and the need for additional chemicals unlike many others in the market.

The end result is up to 70 percent less salt/mineral levels than its rivals, resulting in record low levels of chlorine produced. (No more than what you drink from a tap or shower in every day). So not only is your water healthier and crystal clear, your equipment and pool surrounds will last much longer due to the freshness of the water. Even your garden will love it!

When you swim in a Naked Pool, you will feel like you’ve just had a shower or come out from a fresh water stream.