A pool cleaning robot that may include a fluid inlet, a filter; a winding mechanism and a holding mechanism; wherein the winding mechanism is configured to perform a winding of the filter thereby removing a filter portion that was positioned in a filtering position and placing another filter portion, that was previously stored by the holding mechanism, in the filtering position; wherein the filter portion, when positioned in the filtering position, is configured to filter fluid that enters through the fluid inlet; and wherein the holding mechanism is configured to hold the filter and to store folded and unused filter portions.