How to Remove Copper Stains from Swimming Pools
Blue-green stains on your pool surface are clear sign that you have a copper problem. Maybe you've been using copper algicide or have a pool heater. Either way we'll show you the fast and easy way to remove your copper pool stains.

What You’ll Need

Super Stain Treat™

One (1) bottle per 15,000 gallons

Brush

Regular nylon pool brush

Liquid Acid

Approximately one to two gallons of Muriatic acid per 20,000 gallons of pool water

Chlorine Neutralizer

About 2 oz. of sodium thiosulfate per 10,000 gallons

At a Glance

steps

min. work

day results

6 Steps to Remove Copper Pool Stains

Step 1: Turn off your pump.

Turn off your pump system and bypass the timer.

Step 2: Lower chlorine to 0.3 ppm

Lower your chlorine reading to less than 0.3 ppm by either using chlorine nuetralizer or abstaining from adding your sanitizer for a few days.

Step 3: Lower pH to 7.2

Lower your pH to 7.2 by adding Muriatic Acid. You can add more as necessary.

Step 4: Add Super Stain Treat™

Add one (1) bottle of Super Stain Treat™ per 15,000 gallons of pool water.

TIP: Round up

Round your pool up to the nearest 5,000 gallons for dosing.

TIP: Dissolve for wide stains

For wide spread staining, dissolve Super Stain Treat™ in a bucket of water and pour around the pool. This will help give an even finish.

Step 5: Brush

After 5-10 minutes, brush the entire surface of the pool.

Step 6: Rebalance

Slowly rebalance your pool. Once your pH is above 7.2 you can turn on your pump.

Copper Pool Stain Do's

  • Reduce your chlorine to 0.3 ppm.
  • Lower your pH to 7.2
  • Dissolve Super Stain Treat™ in a bucket first for widespread stains

Copper Pool Stain Don'ts

  • Don’t run the filter or allow the pump to kick on if your pH is below 7.2.
  • Don’t add lots of balancers or shock at one time. This can cause staining.

 

Stain Prevention Tips

TIP 1: Balance with the Hamilton Index™

Lower your Total Alkalinity relative to your water hardness according to the Hamilton Index™

TIP 2: Minimize Shocking

Avoid shocking more than necessary. Shocking can lead to metals dropping out of the water and staining.

TIP 3: Dissolve before adding balancers

When using a non-liquid balancing chemical (such as pH increaser or granular acid), dissolve it first and pour it around the pool. This will minimize chances of metal staining.

TIP 4: Avoid baking soda for balancing

Switch from using baking soda to soda ash or borates to minimize chances of reacting to metals and forming stains.

TIP 5: Avoid metal algicide

Avoid using copper and silver based algicides that lead to staining.

TIP 6: Use a Stain Preventative

Consider using a preventative stain treatment such as Pool Stain Treat® to keep stains from returning.

Read More

How to Remove Copper Stains from Swimming Pools

Blue-green stains on your pool surface are clear sign that you have a copper problem. Maybe you’ve been using copper algicide or have a pool heater. Either way we’ll show you the fast and easy way to remove your copper pool stains.

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