Routine Maintenance
Graded foams
The filter foams only need cleaning when the foam chamber is full with water and the water layer
above the foams starts to significantly overflow the partition into the cartridge chamber.
25% of the pumps input from the spray bar may be allowed to overflow the partition into the
cartridge chamber, prior to cleaning.
Cleaning the foams before the foam chamber overflows will result in decreased filter efficiency as the
foams work most effectively when partially blocked.
Foams may be cleaned vigorously under a running tap or hose.
Adding Blagdon Bio Start after filter maintenance will help replenish these beneficial bacterial
populations, and is highly recommended during the first two months of operation when the filter is
slowly being colonised.
Ceramic bio media
These will only need very occasional cleaning (once per year), but must be rinsed in pond water to
prevent damaging the beneficial bacteria which help maintain a healthy pond.
How It Works - Flow Detail
COARSE
FOAM
MEDIUM
CERAMIC
BIO MEDIA
FOAM
CHAMBER
UVC
FINE
MAXIMUM
OUTLET
CHAMBER
WATER LEVEL
OUTLET
CHAMBER
CARTRIDGE
CHAMBER
SPRAY
BAR
PARTITION
OVERFLOW
WOOL
CARBON
CARTRIDGE
OUTLET
HOSE
DIRTY
WATER IN
MAINTENANCE & CLEANING
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