Dialysis Machine Water Quality & System Check Checklist [FREE PDF]

Dialysis water quality is tightly regulated under AAMI/ANSI 23500 and FDA 21 CFR 820, requiring routine testing for bacterial contamination, endotoxins, and chemical purity to protect patient safety. Facilities must maintain water action levels below 50 CFU/mL for bacteria and 0.25 EU/mL for endotoxins per AAMI standards. This checklist supports biomedical engineers and BMET technicians in documenting systematic pre-treatment, distribution, and machine-level water quality verifications.

  • Industry: Hospitals
  • Frequency: Monthly
  • Estimated Time: 45-60 minutes
  • Role: BMET Technician
  • Total Items: 36
  • Compliance: AAMI/ANSI 23500:2019 - Water for Hemodialysis, FDA 21 CFR Part 820 - Quality System Regulation, Joint Commission EC.02.04.01 - Medical Equipment Maintenance, OSHA 29 CFR 1910.1030 - Bloodborne Pathogens Standard, EPA 40 CFR Part 261 - Identification of Hazardous Waste

Pre-Treatment System Inspection

Verify all water pre-treatment components including sediment filters, carbon tanks, and water softeners are functioning correctly.

  • Are sediment pre-filters inspected and within their rated service interval?
  • Have carbon tank chlorine reduction times been tested and documented?
  • Is the water softener brine tank filled and the unit regenerating on schedule?
  • Are all pre-treatment bypass valves confirmed closed and locked out?
  • Is incoming municipal water pressure within the acceptable operating range?

Reverse Osmosis (RO) System Performance

Assess RO membrane performance, rejection rates, and system alarms to ensure purified water meets AAMI quality thresholds.

  • Is the RO system conductivity rejection rate at or above 95%?
  • Is permeate conductivity within the acceptable limit per the RO controller display?
  • Are all RO system alarms (pressure, conductivity, flow) tested and functional?
  • Has RO product water flow rate been measured and recorded?
  • Is the RO system concentrate (reject) disposal routed to an approved drain?

Water Quality Chemical & Microbiological Testing

Document chemical contaminant levels and microbiological culture results against AAMI action and maximum contaminant levels.

  • Have bacterial culture samples been collected from the distribution loop product water port?
  • Is the most recent bacterial culture result within the AAMI action level of 50 CFU/mL?
  • Is the most recent endotoxin test result below the AAMI action level of 0.25 EU/mL?
  • Have chlorine and chloramine levels been tested at the post-carbon point and recorded?
  • Are chemical contaminant test results (aluminum, fluoride, lead) within AAMI maximum limits?
  • Are all water quality test results documented in the facility's quality records system?

Water Distribution Loop Integrity

Inspect distribution loop piping, connections, return flow, and loop disinfection records to prevent biofilm formation.

  • Is the distribution loop operating in a continuous recirculation mode with no dead legs?
  • Are all distribution loop connection points and use-point fittings free from visible corrosion or biofilm?
  • Has the distribution loop been disinfected per the scheduled protocol and documented?
  • Is return loop flow pressure and temperature within the system design specifications?
  • Are distribution loop sample port caps in place and sanitized between sample collections?

Dialysis Machine Pre-Use Equipment Check

Verify machine-level water connections, conductivity alarms, blood leak detection, and pressure monitoring systems.

  • Are all water supply and drain line connections to the machine leak-free and secure?
  • Is the machine's online conductivity monitoring system calibrated and displaying within normal range?
  • Is the blood leak detector alarm tested and confirmed functional?
  • Are transmembrane pressure (TMP) and ultrafiltration rate settings verified prior to patient connection?
  • Has the machine completed its self-test and rinse cycle without error codes?

Infection Control & PPE Compliance

Confirm bloodborne pathogen precautions, PPE availability, and surface disinfection protocols are observed during maintenance activities.

  • Is appropriate PPE (gloves, gown, eye protection) available and worn during water system maintenance?
  • Are all exterior surfaces of the dialysis machine disinfected with an EPA-registered disinfectant between patients?
  • Are sharps containers available, properly labeled, and less than three-quarters full in the dialysis unit?
  • Has the BMET technician performing this inspection completed current bloodborne pathogen training?
  • Are biohazard waste bags and disposal containers correctly labeled and accessible in the maintenance area?

Documentation & Corrective Action

Confirm all findings, out-of-specification results, and corrective actions are recorded in the quality management system.

  • Have all out-of-specification water quality results been entered into a corrective action report?
  • Is this completed checklist being retained in the equipment maintenance record per facility policy?
  • Have any equipment deficiencies identified during this inspection been reported to the supervising engineer?
  • Are the next scheduled preventive maintenance and water quality testing dates recorded in the CMMS?
  • Inspector additional notes or observations

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Why Use This Dialysis Machine Water Quality & System Check Checklist [FREE PDF]?

This dialysis machine water quality & system check checklist [free pdf] helps hospitals teams maintain compliance and operational excellence. Designed for bmet technician professionals, this checklist covers 36 critical inspection points across 7 sections. Recommended frequency: monthly.

Ensures compliance with AAMI/ANSI 23500:2019 - Water for Hemodialysis, FDA 21 CFR Part 820 - Quality System Regulation, Joint Commission EC.02.04.01 - Medical Equipment Maintenance, OSHA 29 CFR 1910.1030 - Bloodborne Pathogens Standard, EPA 40 CFR Part 261 - Identification of Hazardous Waste. Regulatory-aligned for audit readiness and inspection documentation.

Frequently Asked Questions

What does the Dialysis Machine Water Quality & System Check Checklist [FREE PDF] cover?

This checklist covers 36 inspection items across 7 sections: Pre-Treatment System Inspection, Reverse Osmosis (RO) System Performance, Water Quality Chemical & Microbiological Testing, Water Distribution Loop Integrity, Dialysis Machine Pre-Use Equipment Check, Infection Control & PPE Compliance, Documentation & Corrective Action. It is designed for hospitals operations and compliance.

How often should this checklist be completed?

This checklist should be completed monthly. Each completion takes approximately 45-60 minutes.

Who should use this Dialysis Machine Water Quality & System Check Checklist [FREE PDF]?

This checklist is designed for BMET Technician professionals in the hospitals industry. It can be used for self-assessments, team audits, and regulatory compliance documentation.

Can I download this checklist as a PDF?

Yes, this checklist is available as a free PDF download. You can also use it digitally in the POPProbe mobile app for real-time data capture, photo documentation, and automatic reporting.

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