2-9. OPERATING PROCEDURES - cont.
Maintaining Chlorine Dosage.
Test will be performed hourly or more often as environmental conditions change.
Draw water sample from product water line.
Perform chlorine residual test in accordance with instructions supplied with color comparator kit.
If chlorine residual is less than 5 ppm (or less than amount directed by medical personnel), increase
CHLORINE control knob (figure 2-56) setting by two index marks.
Wait five minutes then repeat steps (1) and (2).
If chlorine residual is still too low, repeat steps (3) and (4).
Repeat steps (1 thru 4) until correct chlorine residual is obtained.
Potable water must be checked by medical personnel before issuing water.
Set DISTRIBUTION PUMP switch (figure 2-64) on control box to START. DISTRIBUTION PUMP
lamp will come on.
Remove cap from dispensing nozzle (figure 2-63). Squeeze handle on dispensing nozzle to start water
As required, open gate valve between product water tanks No. 1 and No. 2 to ensure water flow to
Operate distribution pump until user has enough water, then set DISTRIBUTION PUMP switch (figure
2-64) to STOP.
Release handle on dispensing nozzle (figure 2-63). Install cap on end of dispensing nozzle.
Monitor R.O. Pump Pressure. Refer to figure 2-64.
The R.O. VESSELS gage on the control panel is a good indicator of the condition of the R.O. elements.
Gage should indicate 50 to 100 psid while R.O. elements are in good condition.
Check R.O. PUMP LOW PRESSURE lamp on the control box. It must be off during normal operation.
If the lamp comes on, the R.O. pump will shut down at once. Check table 3-2 for troubleshooting