Namesag. If you read what I put earlier, I said he was a friend of a friend - I do not know him anymore than I know you! I was only concerned because so many people were putting such an emphasis on powerflushing and this had not been mentioned by him - I now know that a chemical flush will suffice! He is not putting himself out for my benefit, he is putting himself out for £450 (probably tax free). However, I know that he could charge me a great deal more, and for this I am most grateful. The bottom line is that I did not want to spend £1200 (a great deal of money to me at this time of year) to be back in the same boat 6 months down the road because the system had not been powerflushed. I thank you for your contribution to this discussion!!
Powerflush
- Thread starter simmodave
- Start date
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Er, well you don't, really. What matters is that the system is CLEAN. How you get there ultimately isn't the main point, though the Mfrs Instructions will state that cleaning should be done in accordance with BS's.
Powerflushing per se is neither "Necessary" nor "Sufficient", though it might achieve your aims.
For example, if a couple of your pipes are completely blocked (not that unusual) no amount of flushing will be guaranteed to clear it.
If, OTOH, the system is pretty clean, you might run with the old boiler for some hours with sentinel X800, or say Fernox HD Restorer, at a medium temp (it's quicker, though not better, if you do it warm) then blast it all out with the mains and full flow flush points.
As indicated above, you get a pretty darned good idea of what a system's like if you take a radiator off.
On signing -off,
The Benchmark sheet needs Corgi details, as does the boiler warranty.
Also the installation should be Notified by the corgi regd installer - see this, which is issued by Corgi to regd installers. I put it there, though, not corgi!
http://www.box.net/shared/y310d11iqf
From your point of view the system needs to be treated so that dirt is removed and the installer will accept responsibility for any dirt remaining in the system. Exactly how he does that is not totally relevant.
Merely putting some approved chemicals into the system may or may not be adequate. Power flushing using the right chemicals is the quickest and best way particularly for dirty systems as its continued until the system is clean. This usually takes 4-5 hours.
A CORGI is not allowed by CORGI to sign off a system they did not install themselves. Only a very few CORGIs will do that. Most pull the wool over your eyes by NOT notifying the installation to CORGI and instead give you a Gas Safety Certificate or a Landlord's Gas Safety Certificate which is NOT the document you need and does NOT notify the installation to Building Control.
Also ensure the Benchmark certificate is completed INCLUDING the notification number which you should check is correct with CORGI.
Tony
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There is no such thing as CORGI qualified.
Someone is either registered or not. If you work for a company under their number, you are NOT.
That means the entire installation is illegal.
I caught somebody doing exactly this, AND in a very bad way. Asked him for his card and he became aggressive. Old bill escorted him off the premises and has informed his boss. If boss wants to, he can boot Mr cowboy on the spot.
In a nutshell, what your guy is offering is fraud and theft.
Getting someone else to inspect it and sign it off, is illegal as well as invalid
Tipping the rads in the garden is never better than a powerflush.
Unless you pull out the pipes from under the floor and tip those in the garden as well.
Someone is either registered or not. If you work for a company under their number, you are NOT.
That means the entire installation is illegal.
I caught somebody doing exactly this, AND in a very bad way. Asked him for his card and he became aggressive. Old bill escorted him off the premises and has informed his boss. If boss wants to, he can boot Mr cowboy on the spot.
In a nutshell, what your guy is offering is fraud and theft.
Getting someone else to inspect it and sign it off, is illegal as well as invalid
Tipping the rads in the garden is never better than a powerflush.
Unless you pull out the pipes from under the floor and tip those in the garden as well.
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