What is the Under Current System?

The Under Current® system is the world’s only recirculating water culture hydroponic system to feature our patented Sub-Current Culture® circulation method.

Sub-Current Culture® (SCC) technology employs negative water pressure to recirculate extremely oxygenated nutrient solution through the plant’s root zone. This continuous fluid movement supercharges the nutrients with dissolved oxygen, generating hyper-aerobic conditions ideal for explosive plant growth. Continual 24/7 nutrient circulation ensures pH and EC levels are consistent throughout the entire system.

Our unique water culture application is unparalleled in layout flexibility and ease of use. The Under Current® repeatedly delivers awe-inspiring yields for any sized application, from hobby to commercial greenhouse.

Under Current System Features

Modular Design

• Multiple growth module sizes and plant spacing options
• Easy to set up, break down and expand
• 60+ system configurations to suit any size plant and grow space
• Designed to accommodate a wide variety of lighting footprints

Premium Construction

• Highest quality commercial and greenhouse caliber components
• CCH2O’s proprietary parts are designed and manufactured in California
• Systems utilize professional grade air and water pumps

Benefits of Growing in an Under Current

Prolific Yield Potential

• Increased growth rates produce larger overall plants and drastically reduce vegetative times
• Higher productivity with fewer plants

Increased Efficiency

• High levels of aeration and constant circulation optimize plants nutrient uptake capacity
• Conserves water and necessitates less frequent nutrient change-outs

Proven Nutrient Formula

• Our Cultured Solutions® premium plant nutrients are custom formulated specifically for the Under Current® system and high-performance hydroponics
• Cultured Solutions® are pH stable, clean and highly chelated

Reduced Maintenance

• pH, EC/TDS and solution temperatures stay uniform throughout the entire system
• Easily adaptable to pH/nutrient dosers, top-off reservoirs and water chillers

Grower Support

• We offer expert grower support to every Under Current® system and Cultured Solutions® nutrient user; we want you to be successful with our products. Let us help your garden thrive!

Under Current System Options

Boneless Spacing*: All Under Current® systems are available in a “Boneless” configuration. Boneless systems ship WITHOUT straight sections of piping allowing for custom plant spacing. Please contact us for pricing on this option.

Remote Epicenter*: All Under Current® systems are available with a “Remote Epicenter”. This allows growers to place the Epicenter (Control Module) on the outside of their grow space or tent. Please contact us for pricing on this option.

*Please note: Both of these options require growers to purchase, cut and glue PVC.

System Information

*General Recommendation – Check Manufacturers Specifications for proper chiller sizing.

The Under Current 4 XL Includes:

• Drain Out Kit
• Adjustable Float Valve with Reservoir Adapter Kit
• Cultured Solutions™ XS Growers Pack
• 3-Year Limited Warranty.