General FAQs

Water hammer can be caused by trapped air within the properties mains water pipework, it is first recommended that you isolate the water supply at the properties main stop cock and drain down the water by opening all taps and flushing toilets starting with the highest and working to the lowest, then turn the water supply back on at the properties main stop cock and  vent any unwanted air from the pipework, starting by carefully opening the lowest tap(s) and working to the highest until a free flow of water can be observed from each tap, the toilet cisterns will re-fill and should then be flushed, then check for Water hammer, if the Water hammer problem persists we would recommend fitting a water hammer arrester.

There are 3 possible causes;

  • a build up of debris or limescale inside the system
  • the fill valve could need replacing
  • water pressure has reduced

Firstly, flush any debris from the valve and water system. If the issue persists, repair the fill valve or replace it with a compatible model for your cistern.

If your toilet is flushing when no-one has pressed the flush, it could be that your toilet is losing water. Also, the fill valve may start flowing by itself so it may need cleaning. If you can hear a hissing noise, you probably have a blockage. Remove and clean the fill valve. If you can hear banging after flushing, there's an obstruction or air in the system to the flow path of the water. Turn off the water supply, flush the cistern and clear out to remove the obstruction.

This can be caused by the flush valve or syphon not opening. Or it could be that the cistern has not filled and there is not any water to flush.

You can fix this by replacing or moving the float ball, as it may be sitting too high. Overflowing toilets can also be caused by damaged or dirty refill valves.

Also called a 'Leaky Loo'. The problem will either be with the flush value or the fill valve. Is the water level rising and falling into the overflow pipe? If it is, your fill valve might need cleaning or replacing. Check the flush valve. You may need to replace the rubber seal if it is damaged. If this doesn't stop the trickling, you may need to replace the flush valve.

Check if there are any blockages. Clean the rim feed and jet holes. This can break down limescales and restore the flush to full strength. Check if there's a decreased water level. If your water level is not filled to the marked water line or is more than 2.5cm below the overflow pipe, this may be causing the problem.

A concealed cistern is a cistern hidden behind the wall of your bathroom, which enables the toilet pan to sit flush against the wall. The concealed cistern comes in two main forms: the fully concealed cistern based within a partition wall, and a furniture-based version in which the toilet cistern is hidden in a furniture or storage unit.

Ghost flushing happens when water leaks out of the tank over a long period of time. This leak is usually caused by the breakdown of your toilet flapper, which slowly allows water to leak into the bowl which causes the toilet to flush on its own.

Unfortunately, most new toilet cisterns, supplied with a flushing valve, are unable to be converted for use with a Flushing Syphon. This is due to the fact that these cisterns are not supplied with a front lever hole, which would be needed to operate the Flushing Syphon.

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