Ineffective RO cleaning, poor recovery and rapid recurrence
Use this when ineffective ro cleaning, poor recovery and rapid recurrence is observed but the cause remains unclear. The diagnostic checks measurement and sampling, operating changes, issue location, and key evidence before suggesting likely causes and the next useful check.
First time here? Start with this
You do not need every data point before you begin
The system asks one discriminating question at a time and updates the candidate causes on the right. Answer from current facts; choose unknown or defer a question when the evidence is not available.
- 1
Confirm the issue
Check whether the symptom is reproducible and whether the measurement or observation is reliable.
- 2
Narrow the causes
Continue through operating changes, issue location, and available inspection results.
- 3
Read the live result
Candidate causes, support, counter-evidence, conflicts, and next actions update as you answer.
This tool analyzes information you already have. It does not insert a safety screen or use safety status to stop the diagnosis. If an alarm, leak, or injury is happening now, follow the site emergency procedure directly.
Automatic troubleshooting · Selections are not uploaded
Only one question is shown at a time. Answer from current facts or defer an unknown item. Possible causes and next checks update on the right as you answer.
- 1Data validity
- 2Operating changes
- 3Issue location
- 4Further confirmation
Question progress
0/22
- Answered
- 0
- To confirm
- 22
- Clues found
- 0
Load a test scenario
Next question
Phase 1 · Data validity
Are pre- and post-cleaning measurements valid and normalized?
The system asks the question most useful for separating possible causes. Unknown or deferred items are not treated as the opposite conclusion.
I have more test or inspection resultsOptionalAdd laboratory analysis, normalized calculations, or checks completed by trained personnel when available. These fields are optional.
View rule sources (10)Standards, regulations, OEM material, and peer-reviewed literature used to audit the diagnostic logic. You do not need to read them before starting.
Each rule cites material directly relevant to its judgment. Current OEM and site procedures remain controlling.
- A-current-oem-manual · DuPont Water Solutions · 2026FilmTec Reverse Osmosis/Nanofiltration Membranes Technical Manual, Rev. 19
- A-current-oem-service-bulletin · Hydranautics · 2026TSB107 Foulants and Cleaning Procedures for Composite Polyamide RO/NF Membrane Elements
- A-current-oem-service-bulletin · Hydranautics · 2026TSB125 Reverse Direction Cleaning of RO/NF Elements
- A-current-oem-service-bulletin · Hydranautics · 2026TSB128 Chemical Compatibility of Hydranautics Membrane Elements
- A-current-oem-service-bulletin · Hydranautics · 2026TSB116 Returned Goods Authorization and Element Examination Procedure
- A-current-oem-service-bulletin · Hydranautics · 2026TSB126 Criteria for Replacement of RO Membrane Elements
- A-current-industry-standard · ASTM International · 2019ASTM D4516-19a Standard Practice for Standardizing Reverse Osmosis Performance Data
- A-current-industry-standard · ASTM International · 2023ASTM D4194-23 Standard Test Methods for Operating Characteristics of Reverse Osmosis and Nanofiltration Devices
- A-current-federal-regulation · Occupational Safety and Health Administration · 198929 CFR 1910.147 The control of hazardous energy
- A-current-federal-regulation · Occupational Safety and Health Administration · 202429 CFR 1910.1200 Hazard Communication