WHAT IS IT, AND WHY IS IT NEEDED?
'POWER FLUSHING', 'JET
FLUSHING' & 'HARD FLUSHING', are
all expressions used (in the heating trade over many years) 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 the system. The process can be made
even more effective with the addition of powerful cleansing and mobilising agents.
The objective is to restore systems with circulation
and boiler noise problems (caused by sludge and corrosion deposits) to optimum operation. Power flushing removes these deposits
and the problems that they cause.
Power flushing, is also an excellent way to pre-commission and clean new heating
systems, to remove excess flux, swarf and other debris, and the grease and oil used to prevent rusting of components before
use.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
Power Flushing is charged at £200
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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.
Once 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
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.