5
Filter maintenance (continued)
Step 9 - To clean black Bio Balls in the
base of the filter, remove by hand and
wash in old pond water, then replace.
Step 10 - Reverse steps 4 to 9 to ensure
the clean Bio Balls and sponges are
re-installed correctly and lid is closed.
Step 5 - Lift the lid and connected
sponges out of the filter body and turn
upside down
Step 6 - Remove the bottom shield
Step 7 - Using a screwdriver (not supplied)
undo the screws in the bottom
support plate.
Step 8 - Sponges can then be lifted off
and replaced.
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