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Clearflow Power Flush

The Clearflow power flush service is relatively new and is an essential process for all boiler upgrades but also as part of a servicing programme of any sealed central heating system.

Why Powerflush?
Is the system slow to warm up? Are some radiators completely or partially cold? Do radiators need frequent bleeding? Is radiator water dirty and discoloured? Do you have radiators with pin hole perforations and leakage? Are there 'kettling' noises from the boiler? Do you have repeated pump failures?

Any of these symptoms could indicate that your system has circulation and flow problems resulting from internal corrosion and the subsequent formation of rust, sludge, and scale deposits.

A Clearflow power flush can restore circulation and efficiency to the heating system. It purges these products from the system, and replaces aggressive water with clean water, chemically treated to prevent future problems.

Fitting a new boiler to an existing heating system?
The high efficiency and compactness of modern boilers, developed to minimise fuel costs and pollution, makes them more susceptible to problems caused by debris in the system water.
Boiler manufacturers insist that heating systems must be thoroughly flushed before installing a new boiler. A Clearflow power flush is far more effective than traditional methods, ensuring that the boiler installation complies with 'best practise' standards.

How does the Clearflow process work?
The Clearflow power flushing pump is simply connected into the heating system, either across the standard circular pump couplings, across the tails of one radiator, or wherever most practical.
Power flushing is highly effective and works by pumping water at a much higher velocity than usual through the heating system, to loosen and mobilise harmful corrosion deposits. The process is made more effective by specialist cleansing chemicals and an instantaneous flow reversal device, which creates turbulence in the radiators to optimise 'pick up' of the debris.
Once loosened, the unwanted debris is purged from the system with clean water. At the end of the flushing process, the system contains fresh water, and reinstatement of the system to normal operation takes only a few minutes. Radiators are individually flushed, without removing or disconnecting them from the system, by directing the full output of the pump through each radiator separately.
Clearflow power flushing is not a high pressure operation, and it is suitable for most domestic wet central heating systems. It is carried out with minimal disturbance, often without disconnecting the boiler or any radiators.

Why do heating systems need protecting?
As soon as a heating system is completed and filled with water, deterioration of the system begins. However, internal corrosion, sludge formation in low flow areas, and scaling of boilers and heat exchangers, are not inevitable. Good care and maintenance of a system, and addition to the heating system of a quality corrosion and scale inhibitor, such as Systemsafe DM, will prevent and often cure these problems.