Culligan Aqua-Cleer Series Installation, Operation & Service Instructions With Part List page 25

Measuring Flow Rates
To measure flow rates, it is necessary to use a graduated cylinder (100 ml suggested), and a watch or stopwatch with a second
hand. Measure and record the product and concentrate flow rates as follows:
• Collect the water sample directly from the manifold for exactly one minute or exactly two minutes.
• Convert the measured flow rate to gallons per day (gpd) as follows:
Measuring Temperature
Use a thermometer to measure the temperature of the product water. It is most convenient to take this reading when the
product water flow rate is checked.
Checking System Performance
Procedure
The following procedure is summarized on the Performance Worksheet printed on the last page of this manual. It details the
measurement and evaluation of the key aspects of Aqua-Cleer system performance:
• Quality of water produced
• Quantity of water produced and stored
• Efficiency of operation
This procedure should be used to evaluate and record the performance of a new system and to check the performance of
an operational system. The results of the new system performance evaluation should be retained as a benchmark of system
performance in the years to come.
Checking Quality
Measure and record the TDS level of both the product water and the feed water. Calculate the percent removal of TDS as
follows:
As an example, consider a system which is producing 50 mg/L product water from a 1000 mg/L source:
one minute sample: ml collected x 0.40 conversion = gpd
two minute sample: ml collected x 0.20 conversion = gpd
Removal = (Feed Water TDS - Product Water TDS) x 100%
(Feed Water TDS)
[(1000 - 50) ÷ 1000] x 100% = 95% Removal
Performance & Technical Information 23