6
Trouble
Shooting
TROUBLESHOOTING SAND FILTERS:
SAND BACK TO POOL.
*
Sand too small; recommend .40mm to .50 mm size,
20# silica. Inspect.
*
Flow rate too high. Adjust discharge valve to reduce
flow.
*
Sand bed calcified. Change sand.
*
Cracked or loose laterals. Inspect or replace.
*
Cracked manifold. Inspect or replace.
*
Cracked or unseated standpipe in manifold. Inspect or
replace.
*
Too much sand; above basket on standpipe. Inspect.
ALGAE OR DEBRIS BACK TO POOL.
*
Upper standpipe disengaged from bottom of valve.
Lengthen upper standpipe.
*
Upper standpipe disengaged from top of basket.
Inspect.
*
Heavy dirt load.
*
Heavy bather load.
*
Algae. Shock and flock to remove from pool.
*
Dial valve isn’t locked in position. Inspect.
EXCESSIVE PRESSURE IN FILTER.
*
Dirty filter. Backwash; recheck pressure.
*
Backwash adapter in the “return” outlet on the dial
valve. Inspect.
*
Calcified sand bed. Inspect and change if necessary.
*
Using Soft Swim; Baquacil. Use Baquacil’s cleaners.
FILTER LEAKS WATER.
*
Split in tank due to freeze damage. Replace.
*
Drain plug missing or not tight. Inspect.
*
O-ring between tank and valve damaged, twisted or not
lubed. Inspect.
DIAL VALVE LEAKS.
*
Valve set in intermediate position. Inspect.
*
Diverter O-ring damaged. Replace.
*
O-ring between body and housing damaged. Inspect or
replace.
*
O-ring between valve and tank damaged, twisted, not
lubed. Inspect.
*
Pressure gauge installed without sealant or teflon tape.
Inspect.
FILTER WILL NOT KEEP WATER CLEAN.
*
Dirty filter. Backwash or change sand; recheck pres
sure.
*
Algae growth in pool. Shock and flock; then vacuum
on waste.
*
Water started out dirty. Continue to filter and clean as
necessary.
*
Improper sand media. Recommend .40mm to .50mm,
20# silica. Inspect.
*
Heavy swimmer load.
*
Not enough sand in filter. Inspect or fill to proper level.
*
Calcified sand bed. Inspect and change sand if neces
sary.
*
Dial valve in intermediate position. Inspect.
*
Flow rate too low.
*
Backwash adapter in the “pump” inlet on the dial valve.
Inspect.
SAND COMING OUT OF BACKWASH IN BACK-
WASH MODE.
*
Valve missing backwash adapter. Check valve.
*
Too much sand. Just changed and overfilled?
*
Pump is over sized. GPM of pump vs. GPM capacity of
filter. Check.
*
May need smaller backwash adapter . . . extreme case.
PSI is important.
NOTE: If these recommendations do not solve
your particular problem(s), please contact your
local dealer for service.
SERVICE & REPAIR PARTS
Refer all service to your local dealer as his knowledge of
your equipment makes him the best qualified source of
information. Order all repair parts through your dealer.
Give the following information when ordering repair parts:
1. Unit nameplate data.
2. Description of part.
Disconnect power to motor main circuit breaker to
avoid electrical shock.
