Troubleshooting Guide - Filter - STA-RITE Swimming Pool Filter Owner's Manual

TROUBLESHOOTING GUIDE – FILTER
1. Short Cycle Time:
NOTICE: Cycle Time will vary with each installation
and between different areas of the country. The follow-
ing causes and remedies are for cycle times shorter
than normal for your area.
A. Chlorine residual too low; maintain proper resid-
ual (consult pool professional for recommenda-
tion).
B. Flow rate too high; restrict flow to rated capacity
of filter (see instruction plate on filter or specifica-
tions on Page 4).
C. Filter is too small; install an additional filter.
D. Filter module is dirty or plugged; thoroughly clean
the filter (see No. 4, "Plugged Module Cloth", and
"Module Cleaning Procedure", Page 9).
E. Water is chemically out of balance; consult pool
professional.
F. Algae in the pool. Apply heavy dose of chlorine or
algicide as recommended by the pool manufac-
turer.
2. Low Flow/High Pressure:
A. Elements plugged; clean filter thoroughly (see
Page 9).
B. Pipe blocked downstream from filter; remove ob-
struction.
C. Piping too small; use larger pipe (consult dealer
for sizing).
D. Filter area too small; install an auxiliary filter (con-
sult dealer for recommendation).
E. Outlet port check valve obstructed (if applicable);
remove obstruction to allow valve to open.
3. Low Flow/Low Pressure:
A. Pump too small; consult dealer for recommenda-
tions.
B. Plugged pump or plugged hair and lint trap; clean
thoroughly.
4. Plugged Module Cloth:
A. Insufficient cleaning; follow cleaning instructions
closely and clean thoroughly (see Page 9).
B. Water is chemically out of balance; consult pool
professional.
C. Excessive air in filter. Vent air from tank and check
for pump suction pipe leaks. Clean air bleed filter
in module assembly with a hose and soft flow
nozzle.
D. Filter is too small. Install an additional filter.
E. Pool water contains iron. See "Special Cleaning
Instructions", Page 9.
F. Heavy or improper application of powdered chlo-
rine tablets using a binder. See "Special Cleaning
Instructions", Page 9.
G. Algae in the pool. Apply heavy dose of chlorine
or algicide as recommended by the pool manufac-
turer.
H. Use of incorrect chemicals with PHMB sanitizers.
Replace filter module.
5. Pool Water Not Clean:
A. Chlorine residual too low; maintain adequate
chlorine residual (consult pool service technician
for recommendation).
B. Filter module cloth torn, plugged, or punctured;
replace module.
C. Inadequate turnover rate; consult dealer to verify
that equipment is properly sized for your pool.
D. Pump is too large and is overpumping. Reduce the
flow rate.
E. The filter is installed backwards. Reinstall it cor-
rectly.
F. Pool water contains iron. See "Special Cleaning
Instructions", Page 9.
G. Heavy or improper application of powdered chlo-
rine tablets using a binder. See "Special Cleaning
Instructions", Page 9.
H. Algae in the pool. Apply heavy dose of chlorine or
algicide as recommended by the pool manufac-
turer.
6. Pool Accessories Stop Working:
A. Clean filter and observe performance of acces-
sories.
B. If accessories perform better after filter has been
cleaned, use a shorter cleaning cycle for the filter
(that is, clean the filter after a pressure rise of less
than 10 PSI).
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