Algae is one of the most frustrating and costly problems pool owners face. These microscopic plants can be found on pool walls, floors, and steps, or float freely in the water. Once they begin to grow, they can multiply rapidly — turning your sparkling blue pool into a murky green mess almost overnight.

Not only does algae make your pool look unpleasant, but it can also affect water balance, increase chemical use, and even damage pool surfaces if left untreated. Thankfully, with the right knowledge and products, you can easily prevent algae from taking over your pool.

🌊 What Causes Algae in Pools?

Algae thrive in warm, unbalanced, and poorly circulated water. Once they establish themselves, they can spread quickly — especially during hot weather or after heavy rain.

Common causes include:

• High pH levels
• Low sanitiser levels (chlorine or bromine)
• High temperatures and sunlight exposure
• Heavy rainfall or thunderstorms
• Inefficient circulation or filtration systems

🧴 How to Keep Your Pool Algae-Free

Regular maintenance is the key to preventing algae and keeping your water crystal clear. Follow these simple steps to stay on top of your pool care:

• ✅ Maintain chlorine levels within the recommended range.
• ✅ Keep your filter, pump, and skimmer baskets clean and debris-free.
• ✅ Check your pH and Total Alkalinity regularly to maintain proper balance.
• ✅ Shock dose the pool weekly to kill developing spores.
• ✅ Brush and vacuum pool walls, steps, and floors regularly.
• ✅ Monitor phosphate levels — as phosphates act as food for algae.

💧 The Role of Algaecides

Even with good maintenance, algaecides play a vital role in preventing and controlling algae growth. DaleSauna recommends the Blue Horizons range — trusted for their reliability and lasting protection.

Copper-Free Algaecides

• Blue Horizons Algae Controller
  • Ideal for weekly maintenance.
  • Economical and effective at preventing algae growth.

Copper-Blended Algaecides

• Blue Horizons Ultimate Algicide Concentrate
  • Dual-action formula for both prevention and cure.
  • Highly concentrated for long-lasting protection.
• Blue Horizons AlgiMAX Eliminator
  • Long-lasting, effective against black algae.
  • Prevents algae growth for up to 3 months.

Long-Life Copper-Free Algaecides

• Blue Horizons Summerclear
  • Prevents algae for up to 3 months.
  • Compatible with various sanitisers, effective against black algae.

🧠 Final Tips for Pool Perfection

Preventing algae is all about consistency. By maintaining proper chemical balance, ensuring good filtration, and using the right algaecide as part of your regular maintenance routine, you can enjoy clear, inviting water all season long — without the stress of green surprises.

If you’d like advice on choosing the right Blue Horizons algaecide or phosphate test kit, the DaleSauna team is always happy to help.