The term water closet refers to the room where your toilet pan is situated But when we are talking about the WC, we are usually referring to the complete package of the toilet cistern and attached pan.The WC suite has actually undergone several design changes over the last few years. Today our water regulations limit the volume of water that is allowed to be flushed down a newly installed toilet pan to maximum of 6 litres, yet not many years back this was 9 litres. Most toilets that are installed these days are referred to as ‘Wash-Down’ types which basically means that they rely on the discharging water pressure to remove the waste from the pan. Battersea Plumbers know all about WC’s.Occasionally, a siphonic WC will be found. Thease type of WC’s were extensively fitted during the 1970’s and are becoming somewhat of a dinosaur these day as people update their homes. The siphonic type of pan does, however have one advantage up its sleeve over the wash-down type in that it had the additional siphonic action which aided the removal of the pan waste. How it worked was by lowering the air pressure from the pocket of air that is trapped between the two traps. This was achieved by allowing the water that was flushing to pass over something called a pressure-reducing fitting which had the effect of creating a negative pressure which would suck out the air that sat between the two traps of water. With this partial vacuum being created, it now meant that the contents of the WC pan would be sucked out and away down the waste pipework by this effect called siphonic action. SW11 Plumbers understands this action. Although this type of system was very good it was actually quite expensive to install, hence its demise.
