Manual

Page 14
LAKOS SST & PRO II Installation and Operations Manual
PROBLEM POSSIBLE CAUSES SOLUTIONS
Poor Filtration
Consistently High
PressureDifferential
Increasing Frequency
ofBackwashCycle
AutomaticBackwash
Fails to Cycle
Excessiveowthroughlters,causing
“coning” of media sand and/or forcing
contaminantsthroughlteroutlet.
Airintank(s)maycausedisruptionof
the media sand bed.
Incorrect media sand.
Excessively high pressure differential
beforebackwashing,whichforces
contaminantsthroughlterbed.
Insufcientvolumeofmediainlter,
which allows contaminants to pass
through the system.
Excessive contaminant load restricts
owthroughtheltersandprevents
sufcientowforbackwashing.
Insufcientbackwashow.
Inadequate media sand volume, which
mayminimizecoverageofbackwash
owacrosslterbed,creatingdead
spots of accumulated contaminants.
 Backwashowordurationisnot
adequatetoushltertanksofall
contaminants.
Insufcientsandvolume.
Increased concentration of
contaminants in water supply.
Controller power may be off or circuit
breakertripped.
Improper setting of differential switch.
Soleniod(s) malfunctioning.
Lossofsufcientpressuretoactuate
valve(s).
1. Reduceowrateoraddextra
ltertank(s).Seepages5 or 6
forowrecommendations.
2. Bleed off trapped air in system.
3. Replace with proper media
sand. Consult your LAKOS
representative.
4. Backwashmoreoftenatlower
differential pressure.
5. Add proper sand media to
tank(s)tospeciedlevel.
1. Draintank(s)andremovehand-
hole access ports. Carefully
skimawayanyexcessorcaked
contaminants from the media
sandbed’ssurface.Return
tank(s)tonormalserviceand
backwashsystem.
2. Readjustbackwashorpartially
closeeldvalve.
3. Follow #1 and add sand media
as necessary.
1. Adjustbackwashowor
duration.
2. Add media sand to achieve
proper volume.
3. Adjustbackwashfrequency
or reduce pressure differential
setting to achieve more frequent
backwashcycles.
1. Be sure wiring is connected
correctly.Resetcircuitbreaker.
Turn on power. Controller may
be faulty and need replacement.
2. Adjust as necessary. Typical is
6-7 psi.
3. Checkconnections,cleanports
andcheckforthesoundofthe
solenoid actuating. Replace
solenoid if necessary.
4. Checklterscreenonwater
uptakekitandhydrauliclinesfor
clogsorbreaks/leaks.Replace
as necessary.
Troubleshooting