Ideal Standard Close Coupling Ring Washer Doughnut Toilet WC Cistern

Product Information

Note: There are several different sizes of doughnut so make sure that you get the right one. Measure the diameter of the base of the flush valve in the cistern and then you will know what size doughnut you need to ensure it fits correctly. Note: If there is no isolation valve installed then now is an ideal time to install one. See our project on how to fit an isolation valve for help on how to do so. I realise this is an old thread however my experience may be useful to others. I also had a siphon fault with toilet marked M360 from Ideal Standard made in late 1995. I believe the model name is Reflections or Meadow and it was designed as a 7 litre flush.

The close coupled toilet is a fairly modern iteration and was meant as a replacement for the older and less efficient low level toilet. This is a problem in itself as the two types of toilet suite are very rarely interchangeable due to their size and layout. To see how to get over this problem go to our project on changing toilets Again if this is a newly installed toilet and you have just noticed a puddle of water on the floor then it may be coming from the incoming water supply and where it’s attached to the toilet fill valve or flush valve as it’s also known.If these rubber seals are not installed correctly and aren’t actually creating the required seal they’re supposed to, no matter how slight a gap there is, water can easily leak down through. If Plumbers Mait or a similar sealant isn’t used or the screw cap on the hose isn’t done up tight enough onto the fill valve then water can easily leak up through the threads. Finally have a good clean up around the under side of the toilet and floor, removing any water that could cause make you think there are leaks but there aren’t and then flush the toilet. If all is well after any inspection all should be clear and you should now be leak free. Then the real trouble began. Given its condition, it came as little surprise when I couldn't get the original close coupling washer to seal properly. I was pleasantly surprised that Screwfix's sister company B&Q sold the washers separately without having to buy the metal part as well so I bought one.

Once installed, the next problem a lot of people encounter is that, the first time they flush a newly fitted close coupled toilet cistern, it leaks. This is such a common problem and 99% of the time the answer is the same. The cistern needs to be fitted at exactly 90° to the toilet pan. This allows the large rubber ring washer, or doughnut to create a proper seal.

As the issue would also only present itself after the toilet is flushed then this could potentially appear as a failed seal between the cistern and pan. This would also coincide with a newly installed toilet. With the water turned off you can now safely disconnect the supply pipe. Before you do so though, place some old towels under the area surrounding the pipe and an old tray of some type. There will spillage so you will need to catch it all.