All I do is take off the impeller cover, and then using a pair of tweezers, carefully take out the impeller, taking care not to bend or twist, as that can break the impeller shaft.
After that, you can also take out the impeller shaft, in the same manner.
I just use a toothbrush to clean off any gunk (again, carefully, you don't want the impeller shaft to break), and then replace all parts into the filter.
After that, you can also take out the impeller shaft, in the same manner.
I just use a toothbrush to clean off any gunk (again, carefully, you don't want the impeller shaft to break), and then replace all parts into the filter.