Recruiter's Glossary

Examples: Quarantine Protocols • Water Flow Dynamics • Biological Filtration

RO/DI Systems

Term from Aquarium Management industry explained for recruiters

RO/DI Systems (Reverse Osmosis/Deionization Systems) are specialized water purification equipment used in aquarium maintenance. Think of them as advanced water filters that remove harmful substances from water to make it safe for aquatic life. Aquarium professionals use these systems particularly for saltwater tanks and sensitive coral reef setups where water quality is crucial. It's similar to having a high-end water purification system, but specifically designed for aquarium needs.

Examples in Resumes

Maintained and operated RO/DI systems for a 500-gallon coral reef display

Trained staff on proper RO/DI System maintenance and water quality monitoring

Installed new Reverse Osmosis/Deionization equipment for multiple commercial aquariums

Typical job title: "Aquarium Technicians"

Also try searching for:

Aquarium Maintenance Technician Marine Systems Specialist Coral Reef Technician Water Quality Specialist Marine Life Support System Operator Aquarist

Where to Find Aquarium Technicians

Online Communities

Job Boards

Professional Networks

Example Interview Questions

Senior Level Questions

Q: How would you design a water management system for a large commercial aquarium?

Expected Answer: A senior technician should discuss system sizing, redundancy planning, maintenance schedules, water testing protocols, and emergency procedures. They should also mention cost considerations and staff training needs.

Q: What factors do you consider when troubleshooting RO/DI system problems?

Expected Answer: Should explain monitoring water quality parameters, checking membrane condition, understanding pressure readings, and maintaining proper flow rates. Should also discuss preventive maintenance and common system issues.

Mid Level Questions

Q: How often should RO/DI membranes be replaced and why?

Expected Answer: Should discuss typical replacement schedules, signs of membrane wear, water quality testing, and the importance of maintenance records. Should understand how water source quality affects membrane life.

Q: Explain the different stages of an RO/DI system.

Expected Answer: Should be able to explain in simple terms how water moves through pre-filters, the RO membrane, and DI resin, and what each stage removes from the water.

Junior Level Questions

Q: What basic maintenance does an RO/DI system require?

Expected Answer: Should know about regular filter changes, pressure monitoring, and basic cleaning procedures. Should understand when to seek help from senior staff.

Q: How do you test water quality after RO/DI treatment?

Expected Answer: Should be familiar with basic testing equipment like TDS meters and when to perform tests. Should know normal reading ranges for aquarium use.