•
Verify pumps are on and operating
• Liquids that can form gas (hydrogen peroxide, chlorine) can create a lock or seize the pump
Monitoring Frequency
• Each operation will have to determine their approach
• Monitoring should at least occur at startup
• Monitoring other times during treatment would be recommended, especially if the system has had previous failures in delivery
Specific Treatment Monitoring:
•
Calcium Hypochlorite
•
Verifying concentration
• Titration or test strips – Should be Free Chlorine NOT Total Chlorine
•
pH
• Target 6.5-7.5, if over 7.5 another compound may be better
•
Oxidation Reduction Potential (ORP)
• Continuous measurement, controllers and recorders available
•
Monitoring Peroxyacetic Acid
• Verifying concentration – Titration solutions or test strips
• Compound Specific Electrodes are Available
• ORP is not appropriate, but there are specialized Sensors for PAA
•
Monitoring UV Light
•
Be sure unit is powered on
• Sensor is operating – Remove sensor from port to make sure alarm state functions
• Verify dose through sensor output reading
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