P/N • Núm/Pte. • Réf. 991020 00 8 Rev. C 5-11-01
SECTION VIII. TROUBLESHOOTING.
P roble
m
Cause
R
e
m
edy
Pool water not 1. Pool che
m
istry not adequ ate to inhibit algae growth. Main tain pool che
m
istry or consult pool service technician.
sufficiently clean. 2. Too frequent a backwash cycle. Allow pressur e to build to 10 psi above clean filter condition before
backwashing.
3. I
m
proper a
m
ount or wrong sand size. Check sand bed depth and sand size or consult pool service t echnician.
4. Inadequate turnover rate .
R
un syste
m
for longer ti
m
e or consult deal er or pool service tec hnician.
H
igher filter pressure. 1. Insufficient backwashing Backwa sh un til eff luent runs clear.
2.
S
and bed plugged with
m
ineral deposits.. Che
m
ica lly clean filter.
3. Partially closed valve or restriction.
O
pen valve or re
m
ove obstruction in return line.
S
hort filter cycles. 1. I
m
proper backwash. Backwash until effluent runs clear.
2. Pool che
m
istry not adequ ate to inhibit algae growth. Main tain pool che
m
istry or consult pool service technician.
3. Plugged sand bed. Manually re
m
ove top 1" surface of sand bed and che
m
ica lly clean as
required.
4. Flow rate too high.
R
estrict flow t o capacity of filter.
R
e turn flow t o pool di
m
inished, 1.
O
bstruction in the pu
m
p hair and lint pot. Clean basket in strainer.
low filter pressure. 2.
O
bstruction in pu
m
p.
D
isasse
m
ble and clean pu
m
p.
3.
O
bstruction in suction line to pu
m
p. Clean ski
mm
er basket.
R
e
m
ove obstruction in lines.
O
pen valves i n suction
line.
S
and returning to pool 1. Broken underdrain lateral.
R
eplace broken or da
m
aged laterals.
2. Backw ash rate too high.
R
educe backwash flow rate.
3. Too
m
uch sand in the f ilter.
S
ee T able 1, reduce sand level.
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