Professor's Nutrients Ultra Flush | 1L, 5L, 10L, 20L | Mineral Flush and Salt Remover for Healthier Plants

🌿 Professor's Nutrients Ultra Flush is the ultimate mineral flush and salt removal solution for hydroponic and soil growers who want cleaner roots, better nutrient absorption, and a higher quality finish at harvest time.

Available in 1L, 5L, 10L and 20L to suit every size grow.

What Is Nutrient Lockout and Why Does It Matter?

Over time, excess mineral salts accumulate in your growing medium, whether you are running hydroponics, coco, or soil. When salt levels build up too high, your plants can no longer absorb the nutrients they need, even when those nutrients are present in the solution. This is known as nutrient lockout, and it is one of the most common causes of poor growth, yellowing leaves, and disappointing harvests.

💧 Ultra Flush is specifically formulated to break down and remove these excess salt deposits, restore a healthy root zone environment, and get your plants feeding properly again.

When to Use Ultra Flush

🔄 Mid-grow flush : Use when you notice signs of nutrient lockout, salt crust on your medium, or unexplained deficiencies despite correct feeding.
🏁 Pre-harvest flush : Use in the final weeks of flower to clear residual minerals from your medium and improve the taste, aroma, and overall quality of your end product.
🧹 Between cycles : Use to clean and reset your growing medium, reservoir, or system before starting a new grow.

What Ultra Flush Does for Your Grow

🧂 Removes excess mineral salt build-up from your growing medium
🔓 Corrects nutrient lockout so your plants can feed freely again
🌱 Creates a clean, balanced root zone for healthy plant growth
🍇 Improves the taste, aroma, and quality of your final harvest
💧 Compatible with soil, coco, and all hydroponic systems
📦 Available in multiple sizes to suit home growers and large commercial operations

Available Sizes

🧪 1L : Great for small home grows and spot treatments
🪣 5L : Ideal for medium sized setups and regular flushing schedules
🛢️ 10L : Suited to larger grows and multi-plant systems
🏭 20L : Built for commercial growers and high-volume operations

Finish Every Grow the Right Way

A clean flush is one of the most overlooked steps in the growing process. Ultra Flush makes it simple, effective, and reliable, so you can finish every cycle with confidence and pull the cleanest, highest quality harvest possible.