25
DRISTEEM RO 200 SYSTEM WATER TREATMENT SYSTEMS INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
The system should be monitored and all pertinent data recorded on a daily
basis. This includes cartridge fi lter pressure in/out, system pressure in/out,
fl ow and water quality (TDS) in/out. Data is needed to determine operating
effi ciency and for performing system maintenance. The latter includes cleaning
of the membranes, adjusting the operating conditions as well as replacement
of cartridge fi lters and RO membranes.
System monitoring and record keeping
MAINTENANCE
Table 25-1:
Troubleshooting
Issue
Possible Cause
Solution
Inlet pressure low*
Low supply pressure
Correct incoming supply pressure
Cartridge fi lters plugged
Change fi lters
Solenoid valve malfunction
Replace solenoid valve and/or coil
Permeate fl ow low
Low water temperature
Adjust water temperature
Low system pressure
Adjust concentrate control valve
Membranes fouled
Clean membranes
Pump noisy
Low inlet fl ow
See "Inlet pressure low"
Permeate quality poor
Low inlet fl ow
Adjust concentrate control valve
Low system pressure
See "Inlet pressure low"
Recovery too high
Reduce recirculation control valve
Membranes fouled
Clean membranes
Membranes damaged
Replace membranes
* Pressure alarm will occur if inlet pressure falls below 5 psi. Alarm will self-clear when RO system supply pressure is above 10 psi for at least 10
consecutive seconds. A pressure fault can be manually cleared at any time. System will try to operate every 10 consecutive seconds per hour up to
72 hours while in low pressure alarm condition.
