Why is my expansion tank overflowing?
Faulty coil in the hot water cylinder As the hot water passes through the coil at the top, its heat is transferred to the domestic hot water, warming it further, before it exits at the bottom of the coil – known as the flow and return. This rise in water levels can then lead to the feed and expansion tank overflowing.
How do I adjust the ballcock in my loft tank?
Bend the arm downwards so that it ends up being curved downwards. Water will now force the float to act on the arm and close the valve at a lower level. Newer style ballcock valves have a screw for adjusting level. Turn the screw clockwise to reduce the level to which the tank fills.
When does the ball go in a loft tank?
When your overflow is running, your ball cock has “gone”. Every loft tank has one and eventually they all “go”. The ball cock’s job by the way, is to refill the tank automatically every time you draw water off, either by flushing, or by brushing your teeth or using hot water.
How long does it take to change the valve on a loft tank?
If the tank is easily accessible, it’s literally a five minute job to change the valve providing there’s a handy stop cock. “Cocks” stop water at mains pressure entering the loft tank.
When to get a plumber for a loft tank?
Every loft tank has one and eventually they all “go”. The ball cock’s job by the way, is to refill the tank automatically every time you draw water off, either by flushing, or by brushing your teeth or using hot water. Anyway, it’s time to get a plumber in, (scary or what)?
How does a header tank stop water from overflowing?
The hole towards the top of sinks is there to prevent water overflowing onto the floor and header tanks have a pipe that works in the same way. In the feed and expansion tank, there will be a float valve (another name for ball valves) which controls the flow of water into the tank.
Is there a ballcock valve in my water tank?
I recently had a plumber out to replace the ballcock valve in my cold water tank in the loft as it was overflowing to the pipe outside the house. The new valve has certainly fixed that problem, with the water level set about an inch below the overflow pipe.
Why do I need to change the ball valve on my loft tank?
There is a stopcock on the pipe leading to the tank. The reason I need to change the ball valve is that even after bending the arm to the float the valve is still leaking and causing the water to go down the overflow at most inopportune times (ie at 3.00am and waking me up!). I have a couple of questions….
When your overflow is running, your ball cock has “gone”. Every loft tank has one and eventually they all “go”. The ball cock’s job by the way, is to refill the tank automatically every time you draw water off, either by flushing, or by brushing your teeth or using hot water.
How long does it take to change gate valve on loft tank?
If the tank is easily accessible, it’s literally a five minute job to change the valve providing there’s a handy stop cock. “Cocks” stop water at mains pressure entering the loft tank. “ Gate valves ” stop water coming from the tank, which is at a lower pressure.
