Seachem Tidal 35 El Manual Del Propietario página 12

To service the pump:
Proceed as follows (Figure 4): (1) Pull the power cord
from the filter body. (2) Pull outward on the bottom
right corner of the filter body releasing the hook and
(3) pull downward on the pump. (4) Gently pull the
intake cover of the pump away. This will reveal the
impeller (5).
Wash the impeller thoroughly to remove any slime
or scales build up. Do not use soap or detergent. If
desired a dilute solution of vinegar and water can be
used to breakup any scale or lime buildup.
After cleaning, replace the impeller insuring that
it rotates freely around the shaft and replace the
intake cover of the pump. Reassemble remaining
components in the reverse order. Scale and
limestone deposits and the natural wear-out of
components might cause the silent nature of the
pump to diminish. However, they do not affect
the proper function of the filter. In such cases it is
advisable to replace the impeller to return to the
silent operation.
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