Fix Leaking Toilet Adelaide

Ask the Expert Plumber


Do you want to know how to Fix a Leaking Toilet?

Usually, when you flush the toilet it causes a chain or link arm to lift a device called a ‘flapper’, which lets the tankful of water cascade into the bowl. A float will drop as the water drains. It’s connected to a valve that controls when water is let into the tank. When the float gets to the bottom, it tells the valve to close the flapper and fill the tank back up with water. You should also be able to see an overflow tube that drains water out of the cistern into the pan if it gets too high. Sharpe Group can help with the leak detection, Adelaide to ensure you are certain of the leaks present.

Problems that might be causing your toilet to run or leak

The flapper

The flapper might be stuck open, letting water constantly trickle through into the bowl. It can be caused by the chain or link arm catching on something in the tank or the flapper itself getting caught. The flapper might just be wedged open or not aligned correctly with the opening. You’ll need to adjust it slightly to make sure it settles back in place after being lifted by the flush. If it’s old, worn or has built-up sediment, you might need to carefully clean or replace it altogether. Sometimes the rubber seal needs to be replaced.

The water valve

Check to see if the water in the tank is at the water line. Not having enough water means the float may need adjusting. To fill it up properly, always make sure the water valve is turned on all the way.

The float valve

If you’ve already tried the above step, test to see if the float valve is shutting off properly. If you pull up on the float and the running stops, you’ll need to adjust the level of the float or the washers in the inlet valve may need replacing. Excessive pressure can also create overflow problems. (Yes, even toilets can’t handle the pressure sometimes!) Adjusting the valve might mean moving the float down slightly, ensuring it’s not touching or obstructed by anything else or turning screws on top of the valve. It depends on the model of toilet that you have. If your problem has more to do with leaks outside the toilet than in the bowl, the cause is likely to be outside of the cistern. Leaks to the floor will eventually impact floor surfaces and potentially damage your property, leading to costly repairs, not to mention wet feet when you visit the bathroom. Leaking showers could also impact floor surface damage so be weary of all bathroom leaks.

The drainage system

If it seems like the leak is coming from between the toilet and floor, it’s likely that you’ve got a problem with the drainage system and leaking pipes.This is a little more difficult to solve and requires removing the toilet completely. We recommend getting a professional plumber like Sharpe Group to come and take care of this one for you.

Broken flushpipe seal

If the leak seems to be coming from a little higher up, the seal between the tank and the bowl is likely worn and needs to be replaced. You need to lift the tank away from the bowl to replace the seal. Again, if you’re not completely comfortable with your plumbing skills, we suggest calling professional plumbers to get this repaired. If these fixes don’t seem to be doing the trick, it’s time to get the professionals in. If you have an older cistern or toilet, it might even be time to replace it.

If you want us to fix your leaky toilet, running cistern, or leaking shower give the qualified plumbers at Sharpe Group a call 131 750 or complete our service request form today. Sharpe also carry out leak detection, Adelaide for any other water leakage problems you may have.

Sharpe Group have been providing quality plumbing services to Adelaide for over 20 years. With over 30 vehicles servicing the Adelaide area, you can be sure that our team of qualified and highly trained staff will get the job done on time and on budget

Call us today on 131 750 or complete our Plumbing Enquiry and one of our team members will contact you.

Sharpe is the name to trust when it comes to plumbing in Adelaide. Because we have a large team of qualified local plumbers in Adelaide we can provide a truly local service. When you phone the office call centre our efficient administration team will ask you where you live and they will schedule the closest Plumber.

Licenced Plumber with the best tools and equipment

We only employ fully trained Master Plumbers and we are a member of the Master Plumbers Association. Our plumbers drive a fully stocked service vehicle with the full range of common stock items as well as an electric eel and all other tools and ladders. We also have plumbers that specialise in blocked drains and can unblock your drain and repair the pipe without having to dig up your property.


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Sharpe Plumbers cover a wide variety of service needs from leaky taps and blocked drains to hot water system installation. No job is too big or small – we have been doing just that for over 35 years


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