Our shower and hot water system developed a bad smell and on investigation I found dead bird in water tank. I drained tank and although smell is slowly going it has not completely gone. What can I put in system to clear the smell and sterilise. And clean the system. I did not drain the HW cylinders.
The header tank only supplies the hot water system as all cold water taps are fed from the mains.
How the Starling got in there is a mystery as there is no eves access and the tank was covered.
Hope you can help get rid of remaining smelly shower/bath.
Bill