AllPondSolutions 400-HO, Manual

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In general, it is recommended to disconnect your filter and
clean the pipes, impeller and filter media monthly.
Pipework will become blocked with waste and protein
slime over time, so regular cleaning
using a filter stem
brush is important for optimal performance.
The frequency of how often you will need to clean and
inspect your unit of course will depend on a lot of factors
like how dirty the water is when you first start using your
filter, the volume of your water and also how many fish you
have. How often you feed your fish and how long your
lighting is on for will also affect how quickly your aquarium
water gets dirty and will need to be taken into
consideration when planning how often to clean your filter.
To clean the outside of the filter, you can periodically wipe
with a damp cloth (use a cloth dampened with water from
your aquarium, never use any chemical products or
detergents). Lemon juice can also be used to removing
any limescale build-up. Rinse thoroughly afterwards to
remove any acidic residue.
Filter Maintenance
Sometimes delicate fish and plants require a gentler water
flow. The filter's flow rate adjuster allows you to slow the
flow of water whilst maintaining filtration efficiency. When
the flow rate is decreased, up to 50% of water within the
filter chamber is re-filtered several times, purifying the
water further and creating a clean and clear aquarium.
It is also recommended to reduce the water flow rate
during feeding. This results in greater food consumption
and less waste.
Flow Rate Adjuster