How do I clean the inlet filter on the T80 Easi Fit?

Switch off the electricity supply at the mains and turn off the water supply at the isolator valve before starting. Remove the cover and bottom left trimplate to access the inlet filter, then unscrew the filter cap from the bottom of the inlet pipe. Clean the filter using an old toothbrush or similar — do not use a sharp object — and inspect the O-ring for damage before reassembling. The full commissioning procedure must be repeated after cleaning the filter. (Page 19)