Toilet cisterns have several seals and valves that wear out over time. It is rare that the cistern itself should need replacement. Maintenance of the moving parts is usually all that is required. Turn your water tap off between flushing until your plumber arrives. Only a licensed plumber is authorised to work on toilet flushing mechanisms. There are many different cisterns with differing internal mechanisms on the market, this can be confusing. The good news is that as we deal with this situation almost daily, we carry a wide range of major brand parts in stock and can usually fix the problem on the spot.
This is a common problem that is commonly known as water hammer. The problem can usually be resolved by checking your appliance installation. Through years of experience our team can quickly identify the source of the water hammer and modify your plumbing configuration to fix it. Don’t put up with annoying clanging when it can be fixed!