To replace the ballcock valve you must first turn off your mains supply to your attic tank.
Water tank in attic constantly filling.
It is doing what it is supposed to do.
We always had some noise with the old valve but i must agree this is much louder.
As this water leaves the cylinder cold water flows into the bottom of it from the cold tank.
There are several reasons why the condensate line will clog and then the drip pan will fill with water.
As the water level rises the ball rises to switch the water feed off again when the tank is full.
One is that the evaporator is filled with debris like hair dirt or dust.
The evaporator will then not operate properly and the humidity level will be higher in your home and in the air handler.
The valve is a type 2 high pressure.
It wouldn t be pressurised then.
Other things to consider include a constantly flowing toilet.
The maximum water level in the tank should be about one inch below the overflow pipe.
This movement turns the cold water feed on so the tank refills.
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.
You can adjust the pressure with a pressure reducing valve.
However some homeowners choose to wait for their heater to fail.
Bought a new valve and ballcock and installed problem was still continuing.
Reducing the flow into the house from the main stop cock outside might help.
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.
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.
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.
Does it always drip or only when the heating is on.
When the water in the tank is used its level goes down and so does the ball and arm.
So you will still have a small tank in the attic to feed the heating system and to allow for expansion.
Hot water expands and requires relief.
When this is the situation your best move is to purchase a new water heater.
