10
A recent water analysis is important prior to Installation.
1. Review the HDI Pre-Installation Site Survey
Form.
2. The water analysis should include hardness,
TDS, alkalinity, chlorine and pH. Water
temperature is also important for optimal
operation of the system. The information must be
entered into the system via the APP during
installation.
3. Refer to the Maximum Feed Water Conditions
Chart on page 24 for a total listing of water
parameters.
Measuring Conductivity:
Place the probe into the sample and make sure the slot
on the end of the probe is totally immersed. Agitate the
sample with the probe for 5-10 seconds to remove
bubbles that may be trapped in the slot. (make sure
temperature doesn’t change during measuring process).
Measuring pH:
1. Calibrate the probe and meter according to the
manufacturer’s directions. Use of two buffers (pH
7 and 10) for calibration is recommended.
2. Sample water can be collected in any glass or
plastic container. Collect enough sample water
so that you can submerge the tip of the probe.
Rinse the probe with sample water before
placing it in the sample.
3. Place the probe in the sample and wait for the
meter to equilibrate. The meter will have come to
equilibrium when the signal becomes steady.
4. Read the pH directly from the meter according to
the manufacturer’s directions.
.
Measuring Chlorine:
1. Fill a test tube to 5 mL line with sample water
2. Add one *Chlorine DPD #1R Tablet. Cap tube
and mix until disintegrates.
3. Immediately insert test tube into the top of the
device. Slide the Chlorine Slide Bar into the
Viewer. Match sample color to a color standard.
Record as ppm Free Available Chlorine.
Measuring Hardness:
1. Fill test tube to the top with sample (5~6ml).
2. Pour sample into mixing bottle.
3. Add 1 level spoonful of hardness reagent.
4. Add the hardness 3 solution to mixing bottle
dropwise while swirling the mixing bottle. When
the sample color changes from pink to blue,
record the number of drops added.
Number of drops = total sample hardness in grains per
gallon as CaCo3.
Water Analysis
Product Water
Discharge water
Electrical Connection