I have electric hot water tank in my flat. There is overflow pipe coming out of the flat which is driping water out constantly 24 hours. I checked the ballcock valve which is not leaking water in the tank. Please anyone help me what is wrong or causing overflowing the tank????? I have tried to explain as much as i can. If need to be I can bring photo up here for more idea...
Leak from overflow pipe from electric hot water tank
- Thread starter khushiren
- Start date
Sponsored Links
Give us a pic then. 
Give us a pic then.
Thanks for rep. I will upload by this evening as its at home.
Sponsored Links
A couple of possibilities to start with:-
1. The ballcock is beginning to feel it's age, and not closing until the header tank is over-full.
The valve should close fully when the water level is a couple of inches below the overflow to allow for expansion when the water is heated.
2. The immersion heater may be overheating the water, causing excessive expansion, or driving some water up the open vent.
It is not unknown for immersion heater thermostats to fail and remain permanently on regardless of the water temperature.
1. The ballcock is beginning to feel it's age, and not closing until the header tank is over-full.
The valve should close fully when the water level is a couple of inches below the overflow to allow for expansion when the water is heated.
2. The immersion heater may be overheating the water, causing excessive expansion, or driving some water up the open vent.
It is not unknown for immersion heater thermostats to fail and remain permanently on regardless of the water temperature.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
