Aquascape AquaSurge (91017, 91018, 91019 & 91020) - Manuel (Page 7)

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• The outer screen is designed to pop off when it is gently
pulled from either side.
• If your rotor assembly impeller and internal pump body
have excessive scale build-up, clean with a mild acid, such
as white vinegar or a non-abrasive calcium, lime and rust
remover product using a sponge or soft-bristled brush that
won’t scratch the stainless steel. removing scale build up
will allow your pump to run like new again.
• The inner filter screen is threaded on and can be removed
by unscrewing counterclockwise.
• When re-assembling the 4000 or 5000 pump models, be
sure to align the raised key on the impeller flange to the
matching notch in the face of the pump flange.
• Internal Pump Cleaning – if you have thoroughly cleaned
the filter screens on the pump and still have diminished flow
rates, you will need to remove the water cover chamber and
inspect the impeller rotor assembly.
• Winter Storage – If concerned about possible freeze
damage, disconnect the threaded collar on the fitting and
remove the pump from the filter (be careful not to lose the flat
rubber washer). Clean the pump and inlet screens with fresh
water and store the pump in a frost-free location. the pump
can be run during freezing weather, if desired, but the pump
should be removed in the event of a power failure to prevent
any freeze damage to either the pump or the piping.
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