Elderly residents at a Perth retirement village have been forced to shower in a carpark after a gas leak left them without hot water. Gas to the majority of the units at the Collier Park Village in the southern Perth suburb of Como had to be switched off more than a week ago due to a broken pipe. The City of South Perth, which operates the centre, said portable showers had been set up outside while it works to repair the damage. More than 100 residents are still affected.