Quick Tip: Stir the tank water and pour a few drops of food colouring on the water. If the colour comes through into the bowl without the water washing it away, it may be the flapper or the flush valve is leaking.
Quick Tip: Stir the tank water and pour a few drops of food colouring on the water. If the colour comes through into the bowl without the water washing it away, it may be the flapper or the flush valve is leaking.