13 Jetflush Rapid V1-02-15
Section B – Using the Jetflush Rapid pump for power flushing
1. Leave the pump tank cap loose,
or on by no more than one turn if
water splashes whilst flushing/
descaling (to allow gas to escape).
2. Until ready to commence
powerflushing ensure that both
valves are closed. When ready to
commence, open both valves and
open the isolating valves between
flushing pump and heating
system and switch on pump
immediately. Ensure that liquid
level in tank remains at least 10cm
above the minimum mark, adding
more water if necessary.
3. Allow the flushing pump to run for
ten minutes, reversing the direction
of flow regularly. If there is sludge
and debris in the system, the water
returning into the tank will be
heavily discoloured as the high flow
rate picks up looser debris.
4. Check all hoses and connections
for leaks.
5. The pump has the ability to dump
dirty water when the flow is in
either direction.
Change the pump into dumping
mode as follows, remembering
that the flow reverser is
constructed so that the direction
in which the lever points also
indicates the direction of flow.
5a. Operate the flow reverser lever so
that the water is flowing through
the heating system in the same
direction as it is during normal
heating operation.
5b. Rotate the valve on the return
side through 180° so that the
dump label is clearly visible.
By doing this, system water is
diverted to waste down the dump
hose, instead of returning back
into the tank. The liquid level in the
tank will immediately begin to fall.
5c. The mains water inlet supply
(orange tap) should now be
turned on and adjusted so that
the volume of incoming water
compensates for that being
forced out of the system to waste.
Continue dumping until the waste
water runs relatively clear. Ensure
that the water level in the tank
remains at least 10cm above the
minimum mark at all times.
Jetflush Rapid Guidelines (19-02-15).indd 13 19/02/2015 12:13
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