Power Flushing There are thousands of ageing central heating systems with circulation and boiler noise problems caused by the accumulation of sludge, corrosion deposits and scale, traditional methods of flushing just don't get rid of all the debris, and problems often return. By using the Power Flushing method the heating system is forcibly cleansed using water at high velocity, but low pressure, so no physical damage is caused to the system. View the power flush system diagram When to carry out power flushing. It is prudent to power flush a heating system immediately before fitting a new boiler to an existing system to prevent possible future problems. Many systems are found to contain corrosion and sludge, even if no flow problems have yet shown themselves. scaled pipeExisting debris is often mobilised by alterations to the system/piping and the increased efficiency of the new boiler, and may then accumulate in the boiler heat exchanger, causing noisy operation, reduced efficiency and, in extreme circumstances, failure of the boiler. The high efficiency and compactness of modern boilers, developed to minimise fuel costs and pollution, means that they are more susceptible to problems caused by debris in the system water.. You may also invalidate your gurantee if you purchase a new boiler and the system has not been power flushed prior to fitting! How does it work? The power flushing pump is simply connected into the heating system, either across standard circulator pump couplings, across the tails of one radiator, or wherever most practicable. The powerful flow, combined with instantaneous flow reverser device, will dislodge and mobilise deposits and corrosion which resist traditional system cleaning methods. Power Flush FX2: dissolves iron oxides, sludge and limescaleOnce the corrosion and sludge deposits have been loosened and mobilised, fresh clean water is forced through the heating system, pushing the contaminated water out through a full bore dump valve to waste. During the process, radiators are individually flushed, without removing or disconnecting them from the system, by directing the full output of the pump through each radiator separately. At the end of the flushing process, the system contains fresh clean water and reinstatement of the system to normal operation takes only a few minutes. System flushing will not remedy design or mechanical faults, which should be rectified, but in many cases it will cure the problems caused by these.