Set the pump to normal re-circulation mode, then with the unit
running, add the corrosion inhibitor to the reservoir. Allow the
chemical to circulate through the system for about 10 minutes,
reversing direction occasionally.
Switch the pump off and unplug it from the power supply.
Disconnect all hoses from the pump and the heating system.
Empty the pump tank of any remaining water. If the system is
vented, the residual water (which may contain some corrosion
inhibitor) may be poured into a bucket and added to the F&E
tank after this has been cleaned.
Reconnect any removed radiator or disconnected boiler or
pump. Reset radiator valves to original settings. Remove any
temporary isolating valves or caps on expansion and cold feed
pipes, and restore non return valves to normal operation if
necessary. The feed and expansion tank should be thoroughly
cleaned and disinfected before placing into service again.
Page 4
Before you leave
Re-instating the system
6. Set Clearflow into circulation mode, with full flow
through whole heating system
(all radiator valves open).
Add Systemsafe-DM and circulate for 10 minutes
before disconnecting Clearflow and restoring system
to normal operation. B
leed all radiators.
Now dump on the same radiator in the
opposite direction,until water runs clear. Close the
radiator trapping the fresh water.
5. Start dumping. Adjust inlet water to ensure tank
water level remains constant. Allow to run until
dump water is clear.
After circulating through last radiator,
switch to dumping on that one radiator,
until water runs clear.
4. Switch on Clearflow pump, and circulate for 10
minutes, reversing flow regularly.
Shut off first radiator, and move to second. Work
around system, putting full flow through
each radiator in turn.
Test that dump water is neutral
with either pH paper or electronic
pH meter.
3. Open all radiator and lock-shield valves, and set
zone valves to manual position, for full flow
hroughout system.
Shut off all radiator valves except for one radiator.
Allow full flow through this radiator for 5 minutes,
reversing flow regularly.
Commence final dump procedure,
with all radiators wide open. Allow
to run until dump water is clear.
2. Connect Clearflow pump into heating system.
Connect dump, water inlet, and overflow hoses to
Clearflow pump.
Continue circulation through wide open system for
fifteen minutes, reversing flow regularly.
Add 100gm of Neutralising
Crystals to tank, and circulate
for 10 minutes.
1. I
f system is vented, cap off the cold feed and
expansion pipe.
If possible, switch on boiler to heat water to 50oC.
Don’t leave boiler firing continuously.
Restore circulation through Clearflow pump
and complete heating system
(all radiator valves open).
7. Pour 2.5 litres
PowerFlush FX2
into Clearflow tank.
Open up previous radiator, and dump on that until
water runs clear. Work around system in reverse,
dumping through each individual radiator in turn.
7. Pour 500ml of
Hyper-Flush
into Clearflow tank.
EITHER.
EITHER.
When using
FX2
When using
Hyper- Flush
Quick guide to the power flushing procedure
