Bridging the GAPs: Approaches to Treating Water On Farms

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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