The ballvalve in it should be replaced if it s dripping.
Water tank in attic constantly filling.
There may be a valve outside the tank near the ballcock valve but otherwise you will have to locate the stopcock it is often under the sink in the kitchen and use this to turn off the water supply to the entire house.
Bought a new valve and ballcock and installed problem was still continuing.
When this is the situation your best move is to purchase a new water heater.
The valve is a type 2 high pressure.
So you will still have a small tank in the attic to feed the heating system and to allow for expansion.
You can adjust the pressure with a pressure reducing valve.
Notice the overflow pipe from the attic leaking climbed up and checked the cold water tank and noticed that the ballcock was no longer working and the tank was constantly filling.
To replace the ballcock valve you must first turn off your mains supply to your attic tank.
When the water in the tank is used its level goes down and so does the ball and arm.
One is that the evaporator is filled with debris like hair dirt or dust.
The maximum water level in the tank should be about one inch below the overflow pipe.
Reducing the flow into the house from the main stop cock outside might help.
However some homeowners choose to wait for their heater to fail.
Does it always drip or only when the heating is on.
In some cases the sediment build up can reach a point where flushing the tank is no longer possible and may cause your tank to leak.
You may have an expansion tank to handle this or you just have an open vent that runs up and fills into the cold water tank in the attic.
It wouldn t be pressurised then.
This movement turns the cold water feed on so the tank refills.
I recently replaced the ball valve on my cold water tank in the loft but ever since then my wife has complained about the loud whooshing noise as the cistern fills.
As the water level rises the ball rises to switch the water feed off again when the tank is full.
The other things could be that the heating itself is expanding too much and overflowing.
As this water leaves the cylinder cold water flows into the bottom of it from the cold tank.
It is doing what it is supposed to do.
Hot water expands and requires relief.
There are several reasons why the condensate line will clog and then the drip pan will fill with water.