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Remove salt stains from pool

Contaminated salt causes pool stains. In recent years, there has been a significant increase in cheap and low quality salts sold in Australia. These low 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 issues with poor quality and heavily contaminated salts, salt staining in swimming pools has 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. To read more about this click here.

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.

5 Signs of salt staining:

  • Brown stain that won’t brush away
  • Retail stain products won’t remove it
  • Brown stains toward the deep end
  • Dark stains where salt is added
  • Water turns murky when salt is added

Good Quality Salt

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

Poor Quality Salt

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

Remove salt stains without draining your pool

Almost all salt stains can be completely removed using our treatments from every pool finish. As the images show, we can completely remove salt stains from swimming pool surfaces. Best of all the treatment is a fraction of the cost of an acid wash and you don’t have to drain the pool!

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

OPTION 1 – Salt Stain Removal DIY kit

What We Do 1


pool stain removal


pool stain removal



  • 1 Litre of our powerful salt stain release and prevention formula
  • 4 Kgs of our granular salt stain dissolving compounds custom made for your stain
  • Phone support from our technicians
  • Simple step-by-step instructions included
  • Pool does NOT need to be drained
  • Kit is sent and electronically tracked by Fastway Couriers
  • Kids are back in the pool in just 7 days
  • Kit is $285 for pools 45,000+ Litres


Enquire now!

OPTION 2 – Salt Stain Removal – On Site Technician


pool stain removal


pool stain removal



  • 1 Litre of our powerful salt stain release and prevention formula
  • 4 Kgs of our granular stain dissolving compounds custom made for salt stains
  • Complete 7 point on site water testing
  • Your pool does NOT need to be drained
  • Kids are back in the pool in 7 days
  • Visit is $405 for pools 45,000+ Litres


Enquire now!

Remove copper and 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

What causes salt staining in pools

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. You can see examples of what that may look like here.

​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.