Salt Stains

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Salt stains in swimming pools

Signs of salt staining

 Brown stain that won’t brush away

  Retail stain products won’t remove it

 Brown stain running toward the deep end

 Stains form where salt is normally added

Over the past 10 years, there has been a significant increase in low cost salts used in Australian swimming pools.  These lower quality salts are not graded to the same standards normally seen in Australia.  Some large hardware retailers buy huge volumes of lower grade salt and sell it at very low prices.  Because of salt quality issues, salt stains have increased substantially.

Salt stains can appear in several forms and colours.  For example, cheap pool salt with small metal fragments can cause very small rust spots to appear.  Prolonged use of salt with a light brown (minerals) appearance can lead to general discolouration on the pool surface over time.  Remember it is not the salt that stains your pool but rather the minerals and metals found in low quality salt.

The good news is that our treatments can remove salt mineral stains completely without draining the pool or acid washing.  Our proven treatment process is very effective in treating and removing salt stains from Pebblecrete, Quartzon, vinyl lined and fibreglass pools.  Our products often completely remove most mild stains in less than 24 hours!


  Low moisture conten
  Salt is vivid white
  Salt has small crystals
  Salt is fast dissolving
  Salt has low mineral content
  Salt was not the cheapest


  High moisture content
  Salt crystals seem slightly brown
  Salt has large crystals
  Salt takes hours to dissolve
  Salt has high mineral content
  Salt was a real bargain

We remove salt stains without draining your pool

Almost all salt stains can be completely removed using our treatments on every pool finish.  As the images show, we can remove salt stains from swimming pool surfaces.  Best of all the treatment is a fraction of the cost of an acid wash!

If you are unsure of the type of stain you have please feel free to speak with us.

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OPTION 1 – Stain Removal DIY kit






  1 Litre of our powerful salt stain release and prevention formula

  4 Kgs of our granular stain dissolving compounds custom made for salt stains

  Phone support from our technicians

  Simple step-by-step instructions included

   Pool does NOT need to be drained

   Kit sent and tracked by Star Track Express

   Kids are back in the pool in 3 days

   Kit is $275 for pools 50,000+ Litres

OPTION 2 – Stain Removal – On site Technician






  1 Litre of our powerful salt stain release and prevention formula

   4 Kgs of our granular stain dissolving compounds custom made for salt stains

   Pump, filter and chlorinator inspection

  Surface inspection and stain diagnosis

   Complete 7 point on site water testing

   Your pool does NOT need to be drained

   Kids are back in the pool in 3 days

   Visit is $395 for pools 50,000+ Litres

Our Company Credentials

SPASA Members for complete peace of mind

Certified Pool Operator

Certified Technicians all with at least 7 years’ experience


Approved contractors for commercial and public pools

Removing minerals & metals from pool water

CuLator Metal Eliminator removes copper and most other metals from pool water.  This helps to prevent metal stains from appearing in your pool later.  CuLator Metal Eliminator is unique because it can physically remove metals and other minerals from pool water. Your pool shop will help you to measure the metal levels in your pool water. Click here for more information about CuLator Metal Eliminator.

Culator Metal Eliminator

Main causes of salt staining

1)  Poor quality or contaminated salts.

Some inexpensive salts have large, light brown crystals (grains) which take longer to dissolve which can increase the chances of staining.  Always make sure that your pool salt is thoroughly dissolved and not left undissolved on the floor of the pool.  The minerals in low quality salts can leave a light brown haze on the surface of your pool.

​2)  Poor methods used when adding salt.

Some pool owners will pour the entire bag of salt in at the shallow end of the pool hoping that water movement will simply dissolve and distribute the salt over time.  Although most pool owners are smarter than these unfortunate folks, concentrated salt stains are still a very common type of staining.  Be sure to disperse the salt around the entire pool and then brush it until it is completely dissolved.  Good quality, fine salt should dissolve very quickly when added to the pool water.  If you find that you are spending a long time brushing to dissolve your pool salt, you may want to try a different brand.

3)  Contaminated or mineral rich salt grains.

Salt can sometimes have individual discoloured crystals in the bag. Even the very best quality salt will have the occasional contaminate from time to time. If you experience this frequently, you may want to consider changing your brand or supplier of salt.  Remember that cheap salt is cheap for a reason.

4)  Adding salt when the water chemistry is significantly out of balance. 

When the pH of water is high, water loses its capacity to hold microscopic minerals and metals in suspension.  This means that the minerals and metals often found in pool salt will plate out (or precipitate) to the pool floor and walls and leave a brown stain.  Always make sure that you balance the water BEFORE you add salt to help prevent stains.  The metals found in contaminated salt are not white.  Therefore, salt staining will most commonly present as a dirty brown colour or dark grey depending on the colour of the pool surface. Salt will rarely leave a white stain in your pool and will almost always be brown or grey coloured.  If you have white stains or lumps in your pool click here as you most likely have calcium.

Why Choose Us?

Because you can speak to a stain specialist about your pool stain today. There is no cost or obligation and we are happy to look at pictures and talk with you before we come out or send a kit. Email pictures to or call us.