How do I clean the filters, and how often should I do it?

Dirty filters decrease washing results, so you should check and clean them regularly. The filter system has three parts (A, B, and C) — turn the handle of filters B and C counterclockwise, pull upward, separate them, and wash all parts with water. Reassemble by placing the flat filter A under the two guides, then refit B and C and turn the handle clockwise until it locks. (Page 19)