Bottom Drain
Efficient sedimentation and feces collection system for land-based recirculating aquaculture, improving water quality and reducing pollution.

Bottom Drain

This ecological collector integrates gravity sedimentation and vortex separation technology to efficiently separate residual bait, feces, and impurities from aquaculture water. The system requires no external power, ensuring extremely low energy consumption. Its structure includes detachable cleanout ports for easy maintenance by one person. Made of food-grade PP material, the device is non-toxic, durable, and corrosion-resistant, ensuring long-term stability. Automatic collection channels direct pollutants into a centralized waste area, reducing labor and daily cleaning workload.

Designed for land-based industrialized recirculating aquaculture systems, the collector improves overall water quality by removing fecal residues and suspended solids. It enhances water transparency, suppresses harmful bacteria, reduces fish disease risk, and stabilizes aquatic environments for species such as fish, shrimp, and other cultured organisms. Ideal for hatcheries, RAS systems, high-density farming units, research facilities, and ecological aquaculture bases aiming to reduce pollution, improve survival rates, and lower operational water and electricity costs.

Product Specification

Parameter Category Specification / Description
Separation Method Gravity sedimentation + vortex separation
Separation Efficiency >90%
Material Food-grade PP (non-toxic, corrosion-resistant)
Power Requirement No external power needed
Maintenance  Detachable cleanout ports, one-person operation
Function Modes  Automatic feces collection; sedimentation + filtration
Application Systems Land-based industrialized RAS aquaculture

Why Choose Us

Request a Quote