Rust stains

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Rust stains in swimming pools

Signs of pool rust staining

 Brown stain that won’t brush away

  Retail stain products won’t remove it

 Forms the shape of object (eg. Nail, bottle top)

 Stain not changing colour or getting bigger

Over 90% of rust stains in swimming pools are caused from metal objects that have fallen into the pool such as hair pins, nails, toys or other metal items.  When these items are immersed in salt water, they begin to rust and stain the pool surface within a few days.  We remove these types of stains every day.

Rust fragments can also settle in a pool when building work, grinding or cutting of metals is done near the pool.  These fragments will not be noticeable at first but will begin to rust a few days later and appear like small rust spots. Small rust spots can also be introduced to the pool from cheap pool salt containing small metal fragments.

The good news is that our treatments can remove rust stains completely within a few days without draining the pool or acid washing.  Our process is very effective in treating and removing rust stains from concrete, vinyl lined and fibreglass pools.  Our products sometimes completely remove mild rust spots in less than one hour!

If you suspect that your rust stain is from the pool reinforcing steel scroll to bottom of page.

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We remove rust stains without draining your pool.

Almost all rust stains can be completely removed using our treatments on any pool finish.  As the images show, we can remove stains from swimming pool surfaces without draining the pool water, blasting or acid washing.  Our treatment is a fraction of the cost of an acid wash and a lot faster and a lot less hassle!

If you are unsure of the type of stain you have please feel free to speak with us.  There is no cost or obligation.

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OPTION 1 – Rust Stain Removal DIY kit

RUST REMOVAL KIT - DYI - $230

FREE DELIVERY


4 KGS POWDER COMPOUND


STAIN DISSOLVING LIQUID


INSTRUCTIONS


  1 Litre of our powerful rust release and prevention formula

   4 Kgs of our granular 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 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 – On Site Technician Visit

RUST REMOVAL – ON SITE TECHNCIAN - $365

TECHNICIAN VISIT


4 KGS POWDER COMPOUND


STAIN DISSOLVING LIQUID


WATER / EQUIPMENT TEST


  1 Litre of our powerful rust release and prevention formula

    4 Kgs of our granular rust dissolving compounds custom made for your stain

   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


EBIX

Approved contractors for commercial and public pools


Other uncommon causes of rust stains

NOTE: LESS THAN 5% OF RUST STAINS ARE CAUSED BY RUSTING REINFORCING MESH.  CALL US TO CHECK.

Reinforcing steel is causing the stain if...

Stain leaves a brown trail

Stain is slowly getting bigger & darker

 Dark stain on the vertical walls

 Stain returns after removal/cleaning

If your rust stain is large (8-40mm across) and dark in colour and continues to get bigger, it may be coming from the reinforcing mesh used in the pool’s structural shell. Although this type of rust stain is very uncommon, it differs from normal rust stains because it continues to look worse over the life of the pool (see pictures below).  This type of rust stain needs to be physically drilled out, plugged and sealed in order to stop the steel from reacting (rusting) with the water.  To repair this problem coloured epoxy products which are designed for use in swimming pools are used to plug the hole.

Although our chemical treatments will improve the appearance of these types of stains, they may reappear after a few weeks or months if nothing is done to permanently isolate the rusting steel from the pool water.

If you would like further information about how these types of stains can be repaired please call us.

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The pools pictured above have stains coming from rusting reinforcing mesh.

Rust Stains from contaminates within the pebble mix

Less than 2% of rust stains are caused from small metal fragments, or contaminated pebbles within the aggregate in concrete pools.  The metal fragments often come from the metal rollers that are used to crush the pebbles down to a particular uniform size.

Individual contaminated pebbles can have heavy mineral content and this mineral bleeds out over time. These stains may also leave a very small brown trail (only 1-2cm). These stains normally appear soon after the pool is newly built and may multiply in certain areas over time. Our treatment process rapidly accelerates the oxidization (rusting) process which will cause the rust stains to break down and dissolve permanently.

Typical machine used to crush large pebbles down to a particular size.


Removing metals from pool water

Customers with large rust stains should consider using CuLator Metal Eliminator in addition to our treatment.  This product will help remove the excess metals from the water to help prevent the stain from reappearing later.  Our standard treatment will dissolve metal stains but will not physically remove all of them from the water.  Common liquid metal treatments only ‘suspend’ rather than actually remove the metal from the water.  CuLator Metal Eliminator is unique because it can physically remove metals from pool water. Your pool shop will assist you in measuring the metal levels in your pool water.

Culator Metal Eliminator
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