Power Flushing

Why Power Flush?

There are a number of reasons to have your system professionally cleaned:

To try and restore old or poorly maintained systems with circulation and boiler noise problems (caused by a build up of sludge and corrosion deposits) to optimise operation and efficiency.

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. In extreme circumstances, failure of the boiler. The high efficiency and compactness of modern boilers, developed to minimise costs and pollution, means that they are more susceptible to problems caused by debris in the system water.

What is power flushing?

Power flushing is the term used to denote the process by which heating systems are forcibly cleansed, using water at high velocity, but low pressure, so that no physical damage is caused to your system. The process is made even more effective with the addition of chemicals to loosen and mobilise debris.

How does it work?

The power flushing machine is simply connected into the central heating system by removing either a single radiator, or across standard circulation pump couplings, wherever is most practical. The powerful flow and instantaneous reverse flow will then dislodge and mobilise deposits and corrosion that resist normal cleaning methods.

Once these deposits have been loosened, the contaminated water is pushed through our Kamco, inline Magnetic filter. This will rapidly remove all corrosion debris – rust / black iron oxide, using powerful earth magnets to attract the iron oxide away from the flushing water;

  • Preventing re-circulation of debris through the boiler
  • Increases power flushing efficiency
  • Reduces time taken to clean the system
  • Reduces contamination to waste water

During the cleaning process, your whole system will be flushed, and then individual radiators are flushed without removing them 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, system inhibitor is added to inhibit further corrosion and reinstatement of the system to normal operation takes only a few minutes.

System flushing will not remedy any mechanical or design faults, which should be rectified, but in many cases will cure the problems caused by these.