Another powerflushing question!!

[Smeagal]

Hi Everyone

If you powerflush a combi system using a pump head adapter in conjunction with the combi pump,can it damage the combi hydraulic set?

The reason I ask is this seems to be an excepted way of doing it but if you speak to Worcester they dont advise you to do it ,any practical experience out there ,anyone had problems with a combi after flushing out I would be interested to hear the consensus on this.Thanks in anticipation!!

 

[Spudhater]

I dont understand why people flush "boilers" can you not cut in before the boiler and isolate the appliance ?

 

[RoryD]

Generally you shouldnt flush combis due to pressure, suppose a double pass heat exchanger would be ok (older models). It's common to disconnect the boiler from the system as advocatede in this forum already

 

[aggis]

Flushing the combi & system you can only flush it in 1 direction, because of the oneway/non return valve,
If wanting to clean the water/water Heat Exch you'll need to remove it & use special adptors, or flush the system & change the w/w heat Exch.