Flushing system before commission

[bassmonster]

Hi all,
As per title, what's the procedure for flushng newly installed central heating and cold feed. Is a powerflush machine needed? Does the boiler need to be part of the flushing? Another Gsr said the just filling up the the system for central heating then draining is enough and for cold feed, just leave the taps open for a while?

 

[plumben]

Hi all,
As per title, what's the procedure for flushng newly installed central heating and cold feed. Is a powerflush machine needed? Does the boiler need to be part of the flushing? Another Gsr said the just filling up the the system for central heating then draining is enough and for cold feed, just leave the taps open for a while?

Depends where your working but last time I looked it was advised that power flush on brand new install, although for me stick a bottle of system cleaner in for a few hours drain and flush, and just let the cold/hot taps run full bore for a few minutes

 

[ShaunCorbs]

as above and on site it normally doesnt happen

 

[thereisawizza]

Full powerflush while the old boiler's off, if not, get someone else to fit your boiler matey!
No point going in cheap on a job then failing their warranty for them with dirty water; Glow-Worm have now upped their minimum water standard they need to find if called out....

While we're on the subject, don't really think much of the Magnacleanse option..

 

[Scott_D]

A brand new heating system?
A chemical flush should be enough.

 

[hammers4spanner]

I agree with scott d new heating system then surely straight flush

 

[hammers4spanner]

Full powerflush while the old boiler's off, if not, get someone else to fit your boiler matey!
No point going in cheap on a job then failing their warranty for them with dirty water; Glow-Worm have now upped their minimum water standard they need to find if called out....

While we're on the subject, don't really think much of the Magnacleanse option..

Magnacleanse is a lot better than no option

 

[hammers4spanner]

Full powerflush while the old boiler's off, if not, get someone else to fit your boiler matey!
No point going in cheap on a job then failing their warranty for them with dirty water; Glow-Worm have now upped their minimum water standard they need to find if called out....

While we're on the subject, don't really think much of the Magnacleanse option..

Magnacleanse is a lot better than no option

 

[lame plumber]

on a new system your only looking to remove swarf, flux and solder so the chemicals will disperse the flux and a standard mains flush done sequentially through the system would bin the rest no problem, anyone saying a powerflush is required has simply forgotten why a powerflushing machine was invented in the first place. As an afterthought a magnacleanse wont achieve anything either.

 

[Millsy 82]

For a whole new system chemicals for a couple of hours or overnight the flush, fill, drain, fill with inhibitor.

New boiler on old system as long as the water doesn't come out black chemicals for a week or 2 before hand, then flush as normal.

 

[Leo21]

Never he any issues with a manual flush and a Magna clean.

 

[quality]

For a whole new system chemicals for a couple of hours or overnight the flush, fill, drain, fill with inhibitor.

New boiler on old system as long as the water doesn't come out black chemicals for a week or 2 before hand, then flush as normal.

Thats one of the reasons why a combi swap takes at least 2 days to do properly

 

[Leo21]

Where's Adam, he can get them done in a morning.

 

[Rickster123]

Where's Adam, he can get them done in a morning.

The only flushing I do during the day is after my morning movement!