Swimming pool operation

摘要

#$%^&*AU2018204660B220200528.pdf#####P1148AU01 ABSTRACT A control system 11 configured to control a swimming pool pump 2 to at the end of a period during which the pump is inactive, operate for a period at a treatment output to treat the swimming pool water and in response to an output from a sensor 8 at or 5 before the start of the period during which the pump is inactive vary at least one of the treatment output and a duration of the period during which the pump is operated at the treatment outputs.