I have a similar filter, the ttex600.. when it comes round to me cleaning it, i take all of the baskets out, squeeze all of the sponges in OLD TANK WATER, and then dip in the ceramic media and bioballs and have a swirl around with thouse.. then i tip all of the water out of the filter, put all of the baskets back in and ta da! I dont bother with the white floss, i find although it polishes the water, it restricts the flow, sometimes i will use it by putting it in just after i have cleaned the filter, and the very next day take it out and throw away.
thanks
Adam
EDIT: I have found its rarely you need to clean the impeller, about every 3x you clean the filter really, so if you do clean the filter every 2 weeks, do the impeller every 6.