Unvented hotwater cylinder

[Santhosh]

Hi,

The invented hot water tank is dripping water continuously. I have tried to top up the air as suggested in YouTube videos by shutting off the hot water outlet and cold water inlet into the tank, opening the hot water tap to let the water out then opened the valve to air in. Have kept the value open for over an hour, however when I turn in the cold water in let and hot water outlet, water starts to drip.
Boiler is working fine, no issue with hot water or central heating. I have attached the PUC of hot water tank and the water dripping in the black thing.

Thank you in advance for your suggestions.

Regards,
Santhosh

 

[Rtplumb]

Hi Santhosh. I recommend you get a G3 plumber in to replace the temperature/pressure release valve. The black thing is called a tundish, by the way.