01727 875020 contact Kamco - The Power Flushing Experts
descaling pumps and chemicals from Kamco
descaling pumps and chemicals from Kamco

The Quick guide to power flushing

IMPORTANT INFORMATION
This step by step guide covers the basics of a power flush. For advice on specific problems or situations refer to the POWER FLUSHING SUPPORT section of our web site, or call Kamco on 01727 875020.
 1   WHAT'S IN THE BOX
Kamco Power Flushing Instructions pic 1
Kamco Power Flushing Instructions pic 1
  • 1. CLEARFLOW PUMP
  • 2. FLOW AND RETURN HOSE (2x 5m)
  • 3. DUMP HOSE (8m)
  • 4. WATER INLET HOSE (8m)
  • 5. OVERFLOW  HOSE (3m)
  • 6. CIRCULATOR PUMP ADAPTER HOSES
  • 7. KAMCO CHEMICAL STARTER PACK
  • Also included: BSP Adapters (10 pack)
 2   VALVES AND FLOW REVERSER
Kamco Power Flushing Instructions pic 2
Kamco Power Flushing Instructions pic 2
  • 1. WATER INLET VALVE
        (location may vary)
  • 2. ISOLATION VALVES (2x)
  • 3. FLOW REVERSER LEVER
  • 4. HOLDING TANK ACCESS CAP
 3   LOCATING THE CLEARFLOW PUMP
Kamco Power Flushing Instructions pic 3
Kamco Power Flushing Instructions pic 3
  • Locate close to supply of mains water
  • Locate close to foul water waste drain
 4   CONNECTING HOSES TO PUMP
Kamco Power Flushing Instructions pic 4
Kamco Power Flushing Instructions pic 4
  • Connect hoses firmly by hand
 5   SEAL OFF VENTED SYSTEMS
Kamco Power Flushing Instructions pic 5
Kamco Power Flushing Instructions pic 5
  • Isolate mains water supply
  • Isolate cold feed
  • Fit temporary cap to expansion/vent pipe
 6   ADJUST THERMOSTATIC  VALVES
Kamco Power Flushing Instructions pic 6
Kamco Power Flushing Instructions pic 6
  • Set thermostatic radiator valves to maximum 
  • Remove thermostatic valve heads
  • Close by-pass
  • Close auto by-pass (if present )
 7   METHODS FOR CONNECTION
Kamco Power Flushing Instructions pic 1
Kamco Power Flushing Instructions pic 1
      REPLACING THE BOILER  
  • Connect across flow and return pipes
    after boiler has been removed
 8   METHODS FOR CONNECTION
Kamco Power Flushing Instructions pic 1
Kamco Power Flushing Instructions pic 1
      REMOVE CIRCULATOR PUMP  
  • Connect to circulator pump connections using adapter hoses supplied
 9   METHODS FOR CONNECTION
Kamco Power Flushing Instructions pic 1
Kamco Power Flushing Instructions pic 1
      CP2 CIRCULATOR PUMP ADAPTER  
  • Remove circulator pump head only
  • Connect CP2 or circulator pump body
  • Connect Clearflow Pump with hoses
    supplied with CP2
 10   METHODS FOR CONNECTION
Kamco Power Flushing Instructions pic 10
Kamco Power Flushing Instructions pic 10
      BREAK INTO COPPER PIPE  
  • Remove a section of copper pipe
  • Connect with push fit connectors
 11   METHODS FOR CONNECTION
Kamco Power Flushing Instructions pic 11
Kamco Power Flushing Instructions pic 11
      REMOVE A RADIATOR  
  • Connect Clearflow to radiator valve bodies
    (not suitable for microbore systems)
 12   METHODS FOR CONNECTION
Kamco Power Flushing Instructions pic 11
Kamco Power Flushing Instructions pic 11
      CONNECT TO BOILER TAILS   
  • Tees and valves may be fitted to boiler tails for convenient connection in the future 
 13   METHODS FOR CONNECTION
Kamco Power Flushing Instructions pic 11
Kamco Power Flushing Instructions pic 11
      REMOVE MAGNETIC FILTER   
  • Connect to pipework/isolation valves after removal of filter 
 14   FASTER POWER FLUSHING
Kamco Power Flushing Instructions pic 12
Kamco Power Flushing Instructions pic 12
      Kamco CombiMAG  
  • Quickly captures magnetic debris
  • Speeds up flushing process
  • Reduces water usage
  • Customers can see what WAS in their system
 15   CONNECTING CombiMAG
Kamco Power Flushing Instructions pic 13
Kamco Power Flushing Instructions pic 13
  • Connect CombiMAG to system using
    hoses and adapters supplied
    with CombiMAG
  • CombiMAG may be connected along side Clearflow in a variety of locations
 16   PREPARE CLEARFLOW PUMP
Kamco Power Flushing Instructions pic 14
Kamco Power Flushing Instructions pic 14
  • Open water inlet valve
  • Allow holding tank to fill to half way
  • Close water inlet valve
  • Set both isolation valves to downward "circulate" position
 17   POWER FLUSHING BEGINS
Kamco Power Flushing Instructions pic 15
Kamco Power Flushing Instructions pic 15
  • System is wide open 
  • Activate main power switch on top of the motor housing
 18   REVERSE DIRECTION OF FLOW
Kamco Power Flushing Instructions pic 16
Kamco Power Flushing Instructions pic 16
  • Rotate flow reversal lever through 90°
    from left to right
  • System is wide open.
 19   SET VALVES TO DUMP
Kamco Power Flushing Instructions pic 5
Kamco Power Flushing Instructions pic 5
  • Isolation valve to the opposite side of flow direction is set upwards to "dump" 
  • Water inlet valve is balanced to maintain water level in the holding tank
 20   DUMP RADIATORS & CYLINDER*
Kamco Power Flushing Instructions pic 5
Kamco Power Flushing Instructions pic 5
  • System is wide open
  • Dump to foul water waste drain
  • *If cylinder is present
 21   DUMP UNTIL WATER CLEARS
Kamco Power Flushing Instructions pic 19
Kamco Power Flushing Instructions pic 19
  • System is wide open
 22   SET VALVES TO CIRCULATE
Kamco Power Flushing Instructions pic 5
Kamco Power Flushing Instructions pic 5
  • Ensure water inlet valve is closed
  • Reset isolation valve to downward position
 23   ADD POWER FLUSH FX2
Kamco Power Flushing Instructions pic 5
Kamco Power Flushing Instructions pic 5
  • KAMCO recommends Power Flush FX2
  • Max power, no need to pre-treat
  • Add FX2 to holding tank via access cap
 24   CIRCULATE FX2
Kamco Power Flushing Instructions pic 22
Kamco Power Flushing Instructions pic 22
  • Circulate FX2 throughout system
  • Turn on boiler, heat system to 50°C
  • Turn off boiler
  • Reverse flow regularly
 25   ISOLATE RADIATORS
Kamco Power Flushing Instructions pic 23
Kamco Power Flushing Instructions pic 23
  • Circulate FX2 through cylinder coil only*
  • Reverse flow regularly
  • *if cylinder is present
 26   OPEN RADIATOR 1 
Kamco Power Flushing Instructions pic 24
Kamco Power Flushing Instructions pic 24
  • Isolate cylinder
  • Open radiator 1
  • Circulate FX2 through radiator 1 only
  • Reverse flow regularly
 27   OPEN RADIATOR 2 
Kamco Power Flushing Instructions pic 25
Kamco Power Flushing Instructions pic 25
  • Close radiator 1
  • Open radiator 2
  • Circulate FX2 through radiator 2 only
  • Reverse flow regularly
  • Repeat this process with all the remaining radiators on the system
 28   SET VALVES TO DUMP
Kamco Power Flushing Instructions pic 26
Kamco Power Flushing Instructions pic 26
  • Isolation valve to the opposite side of flow direction is set upwards to "dump" 
  • Water inlet valve is balanced to maintain water level in the holding tank
 29   DUMP RADIATORS
Kamco Power Flushing Instructions pic 27
Kamco Power Flushing Instructions pic 27
  • Dump radiators individually and in reverse order
  • Dump until water runs clear
  • Repeat step on all radiators on the system
 30   DUMP CYLINDER
Kamco Power Flushing Instructions pic 28
Kamco Power Flushing Instructions pic 28
  • If no cylinder is present, go to next step 
 31   SET VALVES TO CIRCULATE
Kamco Power Flushing Instructions pic 29
Kamco Power Flushing Instructions pic 29
  • Ensure water inlet valve is closed
  • Reset isolation valve to downward position
 32   ADD NEUTRALISING CRYSTALS
Kamco Power Flushing Instructions pic 30
Kamco Power Flushing Instructions pic 30
  • Open system
  • Circulate neutralising crystals
  • Reverse flow regularly
 33  SET VALVES TO DUMP
Kamco Power Flushing Instructions pic 31
Kamco Power Flushing Instructions pic 31
  • Isolation valve to the opposite side of flow direction is set upwards to "dump" 
  • Water inlet valve is balanced to maintain water level in the holding tank
 34   DUMP NEUTRALISED WATER
Kamco Power Flushing Instructions pic 32
Kamco Power Flushing Instructions pic 32
  • System is wide open
 35   DUMP SYSTEM
Kamco Power Flushing Instructions pic 33
Kamco Power Flushing Instructions pic 33
  • Dump until water runs clear 
 36   TEST DUMP WATER
Kamco Power Flushing Instructions pic 34
Kamco Power Flushing Instructions pic 34
  • When dumped water runs clear test it to be sure
  • Test with Turbidity Tube and TDS Meter
  • If Power Flush FX2 chemical has been used,then test with pH Paper or pH Meter as well.
 37   TEST FOR CONTAMINANTS
Kamco Power Flushing Instructions pic 35
Kamco Power Flushing Instructions pic 35
  • Use a turbidity tube to ensure that no particulate or solid contaminants still present
  • Use a TDS meter to ensure that no soluble contaminants are still present.
 38   GET TO pH7 NEUTRAL
Kamco Power Flushing Instructions pic 36
Kamco Power Flushing Instructions pic 36
  • Dumped water with a pH test of 7 is neutral
  • Lower pH levels will lead to corrosion in the system
  • Higher pH can damage aluminium if present
 39   SET VALVES TO CIRCULATE
Kamco Power Flushing Instructions pic 37
Kamco Power Flushing Instructions pic 37
  • Ensure water inlet valve is closed
  • Reset isolation valve to downward position
 40   SYSTEMSAFE DM
Kamco Power Flushing Instructions pic 38
Kamco Power Flushing Instructions pic 38
  • For best results Kamco recommends using SYSTEMSAFE DM corrosion inhibitor with every power flush 
  • Complies with: BS7593 and 
    Building Regulations Part L
 41   CIRCULATE SYSTEMSAFE DM
Kamco Power Flushing Instructions pic 39
Kamco Power Flushing Instructions pic 39
  • Add SYSTEMSAFE DM to holding tank
    via access cap
  • Circulate SYSTEMSAFE DM
  • System is wide open
 42   DISCONNECT AND DUMP
Kamco Power Flushing Instructions pic 40
Kamco Power Flushing Instructions pic 40
  • Turn Clearflow power off
  • Disconnect flow and return from system
  • Run flow hose to foul water drain waste
  • Turn on Clearflow power, dump holding tank via flow hose to foul water waste
 43   RADIATOR HEAT DISTRIBUTION
Kamco Power Flushing Instructions pic 41
Kamco Power Flushing Instructions pic 41
  • Turn on boiler
  • Use an Infrared Thermometer to demonstrate
    more even heating of radiators with cold areas removed
 44   LEAVE A RECORD
Kamco Power Flushing Instructions pic 39
Kamco Power Flushing Instructions pic 39
  • Complete a Power Flushing Certificate to leave with the householder,  retain the carbon copy for your records