Results are checked before reports are issued by the senior or supervising public health microbiologist.
Water temperature testing procedure.
For a pumping well immerse the thermometer in a container with water flowing through until the temperature stabilises.
Procedure for measuring water temperature tie one end of a piece of string securely to the end of the thermometer and the other end to a rubber band.
More frequent testing can reduce the chance of a leak caused by mineral and corrosion buildup.
Record the peak temperature which will occur in about 20 seconds.
If you want to form a very rough idea of whether water is cold lukewarm or hot first hold your hand above the water.
Run at least 3 tests and determine an average value.
Deliver samples to the lab the day of.
Cool to 10 c 50 f for source water and groundwater samples recommended for drinking water as well but do not allow samples to freeze holding times holding times are generally very short 8 hours for source water samples 30 hours for drinking water samples 48 hours for coliphage samples.
During the first set of tests three new sensors monitored the water level.
Mechanic pressurizes the system raising the pressure in the system gradually until the designated test pressure is achieved.
A keller 46w pressure transducer a beltech bts bubbler and a celesco pt1ma float.
A druck ptx 1230 water level sensor was used for control purposes during testing.
Subtract the water temperature from the peak temperature and record.
Then if test is above.
Slip the rubber band around the wrist so that the thermometer is not lost if it is accidentally dropped into the water.
If you feel heat radiate off of the water it is hot and may burn you.
The air temperature was monitored using three thermocouples.
When a glass thermometer is used and the testing point can be reached immerse the thermometer in the water until the liquid column in the thermometer stops moving approximately 1 minute or longer if necessary.
Ensures that water used for the test is at not less than ambient temperature but in no case less than 70 f.
Two sets of tests were performed.
The temperature and pressure relief valve tpr valve opens to release pressure buildup in the water heater when the temperature or the pressure get dangerously high preventing a possible explosion.
For drinking water analyses performed by laboratory assistants the actual results will be visibly verified by a microbiologist.
Step 1 hold your hand near the water.
In the testing procedure two variables were monitored.
Maintains this test pressure for 10 minutes before inspection.
If the water container is large enough dip one of.
If you feel no heat the water will either be room temperature or cold.
Pour the water into the beaker and observe the increase in temperature of the mixture while stirring with the thermometer.
The water level and the air temperature.
