Welsh Water have produced advice on preparing your home against frozen pipes​​ ​​ ​​​​​​​​Link opens in a new window ​ ​.
Mae gan Dŵr Cymru gyngor ar baratoi'ch cartref i atal rhewi pibellau​​​​​​​ ​ ​​​​​​​D​olen allanol yn agor mewn ffenest newydd.