Algae's Worst Nightmare.
Water TechniX Black Spot Remover | Reclaim Your Pool!
Trusted by 15,000+ Aussie Pool Owners

Tired of Stubborn Black Spots Ruining Your Pool?

Finally, say goodbye to persistent, ugly black spot algae and reclaim your crystal-clear pool with Water TechniX Black Spot Remover.

Kills Black Spots in Under 24 Hours!

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Australian Made
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See the Transformation!

Actual results from pool owners like you. Don't just take our word for it!

Before and after of a green, swampy pool transformed into a clear blue pool.
Before and after of a cloudy pool bottom cleared to reveal a clean surface.
Before and after of a dirty vinyl pool liner being cleaned.

The Black Spot Nightmare

You've scrubbed, shocked, and tried every DIY trick. Yet, those stubborn, deeply rooted black spots keep coming back.

Endless Scrubbing

Back-breaking brushing with zero results.

Wasted Money

Regular algaecides just don't work on this.

Permanent Damage

Left untreated, it ruins pool surfaces.

Water TechniX Black Spot Remover 1Kg
100% Australian Made
(1,240+ Reviews)

Water TechniX Black Spot Remover - 1kg

$59.99 $69.99

The highly concentrated, professional-grade formula penetrates deeply to destroy even the most resilient black spot algae roots. Don't waste another weekend scrubbing!

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Demand is high. Avoid the wait—restocking can take weeks if sold out.

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30 Day
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Note: For heavy infestations, a second application is often recommended.

  • Dosage: 1kg treats up to 50,000L.
  • Kills Black Spots Fast: Visible results in under 24 hours.
  • Surface Safe: Concrete, pebblecrete, quartzon, fiberglass, vinyl & tile.
  • Concentrated Power: 900g/kg Trichloroisocyanuric Acid.
  • Prevents Regrowth: Kills the root to stop it coming back.
BUY IN BULK & SAVE: 2 (5% OFF) | 4 (10% OFF) | 6+ (15% OFF)

How Water TechniX Black Spot Remover Annihilates Stubborn Black Spots

Water TechniX Black Spot Remover features a slow-dissolving, concentrated formula. It gradually releases high-strength granular chlorine (Active Ingredient: Trichloroisocyanuric Acid at 900g/kg) over a 24-hour period. This sustained contact breaks down the algae's tough outer layer and penetrates its root system, killing it completely and helping to prevent regrowth.

1

Concentrated Power

High-strength formula targets algae directly.

2

Slow Release Action

Gradually releases sanitiser over 24 hours for prolonged algae attack.

3

Penetrates & Destroys

Breaks down protective layers and kills algae at its core and roots.

4

Prevents Regrowth

Helps to stop frustrating reappearances by eliminating the source.

Simple Steps to a Spotless Pool

Application Instructions:

  1. Brush Affected Areas: Vigorously brush the black spots with a stainless steel brush (for concrete/pebble) or a nylon brush (for vinyl/fiberglass) to break the algae's protective waxy layer.
  2. Apply the Product:
    For Concrete & Pebblecrete Pools: You may apply the product directly onto the affected areas (spot treat). For Vinyl, Fiberglass, Quartzon & Tiled Pools: Apply the product directly into the skimmer basket. Why? Direct application on these softer surfaces can cause bleaching or damage. Adding it to the skimmer dissolves it safely while the high-concentration chlorine shock circulates and kills the algae effectively regardless of application method.
  3. Circulate Water: Run your pool pump for at least 24 hours to ensure even distribution and sustained contact.
  4. Brush & Vacuum: After 24-48 hours, brush away dead algae (it typically turns grey/white) and vacuum the waste to waste or filter.

Important Safety Note

Do not swim for at least 48 hours after treatment. This product super-chlorinates the water, which may cause skin and eye irritation.

Before re-entering the pool, ensure your water is balanced:

  • Chlorine: 2-4 ppm (Summer) | 2-3 ppm (Winter)
  • pH: 7.2 - 7.6

Always read and follow the full product label instructions and safety precautions.

Water TechniX Oxi Shock 500g
Highly Recommended Final Step
(500+ Reviews)
$24.99 $29.99

Oxi Shock 500g Jar

After the Black Spot Remover does the heavy lifting, use Oxi Shock to clean up the mess! It oxidises the dead algae and organic waste, softens the water, and removes that "itchy skin" feeling.

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Dosage: 1x 500g tub treats up to 40,000L.

  • Removes Dead Algae: Acts as the "Garbage Man" for your pool.
  • Eliminates Itch: Removes chloramines that cause itchy skin.
  • Lightning Fast: Swim ready in just 15 minutes.

What Our Customers Are Saying

Amazing Results

Stock Up & Save!

Buy 6 or more bottles and get 15% OFF at checkout. Be prepared for the whole season!