Did you know a leaking cistern tank or toilet can waste as much as an astonishing 400 -600 litres of water a day? You could be wasting precious life resource while causing damage to your home, costing yourself money, without even noticing!
Although it is very likely if our toilet cistern is leaking onto the floor we will notice it very quickly and deal with it immediately.
If the outdoor overflow is running most people will likely notice it within a day or two and get it fixed quite quickly, however; these days most modern cisterns are designed to overflow into the pan and a slow but steady flow of this type is the type of leak that can cause a waste of precious water of the type mentioned above.
To get the picture, think of it as five bath-fulls of water, wasted every day!
Isolating the water is made easier if you have previously fitted isolation valves, what this means is, you can turn off the isolating valves rather than the main stop cock, so that the water is on all over the house except to the cistern that you want to work on.
Cistern Tank Leaking into it’s pan
If you have a modern push button toilet mechanism where the overflow runs into the pan then the leak is difficult to spot, but you might notice limescale built up inside your toilet bowl from that constant leak.
On further inspection you may notice that you can hear water running when the toilet hasn’t been flushed and can also see a slight but constant trickle at the back of the toilet pan.
We got some tips handy for you to spot a leak:
1. Wait for 30 minutes after you flush then wipe the back of the pan dry with toilet tissue.
2. Place a new, dry sheet of toilet tissue across the back of the pan. Leave it in place for up to three hours without using the toilet, if you have a busy home then it might be best if you do this overnight.
3. If the paper is wet or torn in the morning, you know you have a leaky toilet.
Okay, so you have successfully discover a leak what now? Now we are going to tell you how to deal with your cistern tank that keeps leaking.
Push Button Toilet Cistern Tanks
If your push button toilet cistern tank keeps running it can be caused by a bit of grit or limescale getting into the mechanism.
Sometimes this can be dislodged by giving the button a few short sharp taps, or by flushing both buttons and holding them down to ensure the cistern is fully drained off.
If these methods don’t work it is cheaper and easier to replace the full faulty flush mechanism with a new one.
Don’t want to risk it?
Post a Cistern Flush Mechanism Fitting Job now & get live quotes from your local helpers!
Toilet Cistern Tank Leaking onto the Floor
If you have a leak onto the floor and you have a close-coupled toilet (the pan and cistern tank are joined together so you cannot see the flush pipe) the most common cause is that the cistern tank and the toilet are not fitted a precise 90 degrees, so you will need to check the angle.
If you have water leaking from the cistern and you have a low level toilet (the cistern is positioned on the wall just above the pan with a short length of plastic pipe connecting the cistern tank and the toilet) then it is likely to be the seal around the pipe where the water comes into the cistern tank or where it leaves the cistern tank to flow into the pan.
You will be able to tell where the water is coming from by wiping the whole area dry and then using a paper towel to wipe around the joints to see where the water is getting out.
If your toilet only leaks when the toilet is flushed then it is more likely that the leak is coming from the coupling to the waste pipe for the toilet.
Cistern Tank Leaking From the Bottom
Make sure you check that it is in fact a leak and not condensation. You will be surprised how much water can condense on a cold cistern if the air around it is warm and humid.
If it is not condensation and not coming from any of the plumping joints then it could be that you have a cracked cistern tank, in which case it is much better to replace the cistern tank.
Why risk it?
Post a Cistern Tank Fitting Job now & get live quotes from your local helpers!
Dripping Toilet Cistern Overflow
The water level in the cistern tank is controlled by an adjustable float or ballcock. If the float is set too high then the water level also gets too high, so water runs into the overflow.
This can be a pipe that leads outside or, in more modern systems, down into the toilet pan.
You may be able to simply adjust to the float or, if it is broken, you will need to replace it.
There can be several causes of a leaking toilet cistern tank and if your’s does leak, get it repaired as soon as you can to save yourself from a bigger mess down the line and also minimise any environmental impact.