EvolutionWLS - Salt & Chlorination

Salt – Levels and Type

How do i work out how much salt I will need?

Very easily. 1 kg of salt in 1,000 litres of water will raise the salt level by 0.1% or 1,000ppm (parts per million).
Typically your salt level should be around 0.4% 4000ppm.
Use the link below to calculate the level you need. 



What type of salt should I use?

The best salt to use for your pool should be of a high purity. If the salt you use has additives (common table salt etc) then you may experience staining in your pool.

Salt Chlorination

Is the chlorine made by my salt chlorinator different to the chlorine I can buy?
Your salt chlorinator manufactures chlorine in the same way a chlorine manufacturer does, the advantage to you is that it is being made right there in your pool!

Do I ever need to ‘top’ up the pool chlorine at all?
Occasionally you may need to add some chlorine to your pool. Heavy rain fall or low chlorine may cause the levels to need some ‘shock’ treatment.

Will the salt damage my pool or pool equipment?

Not at all. Low salt levels have relatively insignificant corrosive effects on pool fittings, products and equipment.

How do I begin?

After you have installed your salt chlorinator, simply add the recommended amount of salt to your pool and choose the chlorine level that suits you.

Water Quality

The better the quality of your pool water the better your swimming experience for you and your family. Good quality pool water adds longevity to your pool and pool related equipment.

Water sanitation
Anything that enters your pool including garden debris, your family pet or you as a swimmer is a potential  source of bacteria. You need to keep the bacteria levels to an absolute minimum. Sanitizing your pool water with chlorine and filtering your pool water continuously will help keep the bacteria levels low.

What is: Water balance
Your water balance is very important for the health of your pool and the health of you.
If your pool water is imbalanced it may lead to corrosion and scale build-up. This may cause damage to your pool and equipment. It will also prevent proper sanitation of your pool water. 

What is: pH level
pH is a level that indicates how acidic or alkaline the water in your swimming pool is.
pH has a range from 0 to 14
If you have a pH level of below 7 your water is acidic, above 7 and it is alkaline. 7 is neaurtal pH.
Swimming pools normally have a recommended pH range of 7.2 to 7.6, and 7.0 to 7.2 isthe general level for fibreglass pools
Anything entering the pool including: your friends and family, rain water, top up water and any additional chemicals can all affect the pH level of the water. if the pH balance is out of sync then this may cause skin irritations and poor water quality.
Chlorine levels should always be checked regularly and adjusted to improve the water quality.
What is: Total alkalinity
Total alkalinity is the level of carbonates, bi-carbonates and hydroxides in your swimming pool water.
It is recommended that the total alkalinity range is between 60 and 200 ppm, depending on the type of swimming pool, if you have a low total alkalinity it may erode the concrete and painted pool surfaces. It can also destabilise the swimming pool water pH level. The total alkalinity of any top-up water you use will also affect the total alkalinity of your pool water. To raise total alkalinity, add bi-carbonate of soda to your pool water, to lower total alkalinity (and pH level), add acid to your pool water. Speak to your local pool maintenance shop or technician for mroe advice. 

What is: Calcium hardness
Calcium hardness is the level of dissolved calcium present in your swimming pool water. The recommended calcium hardness range is 80 to 500 ppm (parts per million). If you have a low calcium hardness level it can and may lead to corrosion of your pool and pool equipment. If you have a high calcium hardness level it may can result in scale build-up. 
it is recommended that you test your swimming pool water for its calcium hardness level once a year by your local accredited pool supplier. When and if you use calcium hypochlorite in your pool, you may need to re-test and adjust calcium hardness more frequently to avoid any issues. Add chemicals in small amounts, filter the water, re-test and if needed, add more chemicals to get to the correct Calcium hardness level.

enquiries@evolutionwls.com.au or complete our enquiry form.
Call: (+61) 07 5565 0000     Fax: (+61) 07 5565 0010