Power Flushing
The objective is to restore systems with circulation and boiler noise problems
(caused by sludge and corrosion deposits) to their optimum operation.
Power flushing removes these deposits and the problems that they cause.
It is a requirement to power-flush a heating system immediately before fitting a new boiler to an existing system to comply with manufacturers warranties. Many systems contain corrosion and sludge, even if no flow problems have yet shown themselves.
Existing 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, and 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.
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 that resist traditional system cleaning methods.
Once the corrosion and sludge deposits are loosened and moving, 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.