Reverse osmosis (RO) systems are renowned for their ability to produce clean, purified water by filtering out contaminants. However, like any complex system, RO units can encounter issues that may hinder their performance. This guide aims to highlight common problems encountered with RO systems and provide practical troubleshooting steps to resolve them.
Understanding How RO Systems Work
Before delving into troubleshooting, it's essential to grasp the basic principles of reverse osmosis. These systems use pressure to force water through a semi-permeable membrane, leaving behind impurities such as dissolved salts, chemicals, and microorganisms. The purified water collects on one side of the membrane, while contaminants are flushed away.
Common Issues and Troubleshooting Steps
- Reduced Water Flow or Low Water Production:
- Cause: Clogged sediment or carbon filters, low water pressure, or a malfunctioning flow restrictor.
- Solution:
- Check and replace clogged filters as per manufacturer's recommendations.
- Ensure adequate water pressure (typically 40-60 psi) from the source.
- Inspect and clean the flow restrictor or replace if necessary.
- Unpleasant Taste or Odor in Water:
- Cause: Expired filters, bacterial growth within the system, or contamination from storage tanks or plumbing.
- Solution:
- Replace filters regularly as recommended by the manufacturer.
- Sanitize the system periodically following manufacturer guidelines.
- Clean and sanitize storage tanks and plumbing if needed.
- Leakage Around RO System:
- Cause: Loose fittings, damaged O-rings, or cracked housings.
- Solution:
- Tighten fittings gently to ensure they are snug but not over-tightened.
- Replace damaged O-rings or cracked housings promptly.
- Excessive Noise During Operation:
- Cause: Air pressure issues, loose components, or problems with the membrane.
- Solution:
- Check for air leaks and reseal connections if necessary.
- Ensure all components are securely in place and tighten loose parts.
- Inspect the membrane for damage or fouling and replace if needed.
- Persistent Waste Water Production:
- Cause: Improperly adjusted drain line or malfunctioning automatic shut-off valve (ASO).
- Solution:
- Adjust the drain line to achieve the correct ratio of purified water to waste water.
- Check and replace the ASO if it fails to shut off properly.