Getting a new boiler fitted but keeping old system guy said he would pressure flush the old system to clean it out, then put an inhibiter in the system to stop corroision, is this better than a chemical flush? or is just the same, also where does all the crap water end up.
pressure flush
- Thread starter shuggie
- Start date
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sounds like he is using the short cut method 
to pressure flush means, basically to wash the crud out by turn on the cold feed and opening a drain off somewhere else this will not clean the system properly.
a power (chemical) flush will involve the use of a machine usually we take the pump out of the system and put the flusher in instead then we flush chemicals round the whole system and also backwards until all the crud is loosened then drain down and refill with a nuetraliser again to and fro, then drain again and refill with fresh water and inhibitor
the waste water should go down a foul water drain
to pressure flush means, basically to wash the crud out by turn on the cold feed and opening a drain off somewhere else this will not clean the system properly.
a power (chemical) flush will involve the use of a machine usually we take the pump out of the system and put the flusher in instead then we flush chemicals round the whole system and also backwards until all the crud is loosened then drain down and refill with a nuetraliser again to and fro, then drain again and refill with fresh water and inhibitor
the waste water should go down a foul water drain
N
namsag
Only the person on site can say exactly what sort of flush you req as they can see the quality of water on draining down etc.
Be careful of power flushes: on older systems it can cause leaks and loosen joints - due to the power!
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No it doesn't.
Old open vent systems can have leaks that have been closed by the crud in the system; when it gets thoroughly cleaned, they just become noticeable. Bit like a nail in a tyre can seal the leak it made.
Tell me about it. 4 weeks now (that I know of) with a nail in my front tyre
Never get time to have it replaced
Still, so far it is taking after her indoors, never goes down on me
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