Skip to main content

We regularly see distressed clients who’ve bought cheap pool salt from the hardware store and have unsightly brown stains on their pool. Often, this brown staining becomes obvious within hours of adding salt to the water. Unfortunately, many pool owners have experienced this issue.

What are the important differences between poor salt and good salt and why does it make a difference in your pool? Let’s find out.

All salt’s the same right?

It seems obvious that salt is sold by weight. However low-cost brands buy salt that’s heavy with moisture and pollutants at a lower price. In fact, if salt moisture levels are high, you’re actually paying for the water content rather than salt! Keep in mind, salt is sold by the bag weight, not by the actual amount of pure salt in the bag.

Quick Fact: The amount of salt in your bag of salt depends on the quality of the salt, not the total weight of the bag.

pool saltUltrapure salt saves you time and money over the life of your pool and actually costs less in the long term. While no brand of salt is 100% pure, premium salt brands offer better quality control and more accurate measures to check the mineral content.

Good salt vs. bad salt. How are they different?

All salt has the same essential properties. Yet the amount of minerals, moisture and metal content that’s attached to pool salt, can vary considerably from brand to brand. Therefore, the quality of salt added to your pool has a substantial impact on the amount of minerals and metals that are unintentionally dissolved into your pool water.

Quick Fact: Impurities and minerals can stain and tarnish your pool shell, even if the chemical balance of the pool is regularly maintained.

Using quality salt will considerably slow down the mineral build-up in your pool. Unfortunately, once metals, minerals and pollutants are dissolved in the pool, they can only be removed by specialised chemicals. The minerals and contaminates remain in the water, even when occasional fresh water is added by topping up the pool.

Will good quality salt cost me a fortune?

The cost difference between poor salt and good salt is around $4 per 20kg bag. The majority of pools need approximately 10-12 bags of salt per year. So, the extra cost for good quality salt is very small.

However, to remove staining caused by poor quality salt can cost several hundred dollars. As you can see, cheap salt just doesn’t make good economic sense.

Easy tips to identify bad pool salt

  • Large crystal size
  • Discoloured salt particles
  • Slow to dissolve
  • Pool water becomes cloudy or green
  • Brown stains appear on the pool floor after adding salt

If the brand of salt you are currently using is similar to any of the above list, we highly recommend trying UltraPure Salt.

Simple checks to identify good pool salt

  • Small, fine salt crystals
  • Salt dissolves quickly
  • Packaging shows 99.5% purity level
  • Salt looks bright white
  • Pool water feels soft and gentle for swimmers

How do I remove brown salt stains from my pool?

Contact us today if your pool is stained. The longer a stain remains on the floor of the pool the harder it is to remove. It is unwise to cut corners by using cheap salt when the consequences can be costly.


Leave a Reply