Under Current®

How does a RWDC system work?

The patented Under Current® RDWC Hydroponics System is recognized as the gold standard for hydroponic crop production.

The most proven and widely utilized Recirculating Deep Water Culture hydroponic system in the world, the Under Current® is renowned for producing the very highest quality fruits, flowers, and essential oil profiles.

This unique, high-performance water culture system utilizes negative water pressure to recirculate oxygenated nutrient solution through the plant’s root zone. Requiring no timers, the 24/7 circulation and aeration encourages rapid root growth and ensures pH and EC levels are uniform throughout the entire system.

Highly regarded for its unparalleled growth rates and record-setting yields, the Under Current® is simple to operate and well suited for residential, professional and commercial facility applications.

11CCH2O Under Current RDWC hydroponics system how it works

Exceptional Quality
Tests Cleans


Superior Extraction Yields
Stronger Terpene Profiles


Increased Efficiency
Accelerated Growth Rates


Rapid ROI
Increased Gross Profits

Proven Production Approach

Our high-performance hydroponic systems and premium plant nutrients are utilized worldwide by the most discerning growers. This proven approach allows cultivators to efficiently produce high-quality, consistent, clean crops.

Improve Productivity and Quality With Reduced Labor


The patented Under Current® RDWC system is unmatched in productivity, efficiency, and ease of use.

Get the best results


Cultured Solutions® premium hydroponic nutrients are formulated with only the finest mineral salts, providing an exceptionally well balanced, highly-soluble nutrient solution for explosive growth.



Avoid mineral deposits and bio-films in your irrigation system with our descaling solutions Clear Line and UC Roots.

Are you a professional cultivator?
Commercial Solutions Available.