Boiler manufacturers do not normally statethat you need to use a power flush machine, they require you to flush the system to the current british standards which in many cases would require the use of a machine dependant on the systems condition. The british standard is about the system condition and leaves the method used to clean the system the choice of the installer. Normally 3 methods are exceptable, gravity, mains flush and machine.
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Boiler manufacturers do not normally statethat you need to use a power flush machine, they require you to flush the system to the current british standards which in many cases would require the use of a machine dependant on the systems condition. The british standard is about the system condition and leaves the method used to clean the system the choice of the installer. Normally 3 methods are exceptable, gravity, mains flush and machine.
to me its sounds like you did not get a real powerflush. The correct method takes a number of hours and alot of equipment to do it correctly. Taking water samples as you dump dirty wata from each rad untill its almost drinkable.
J
JeffD
If your power flushing without magnets then you must flush n dump each rad till crystal clean, flushing with magnets you'd se the sludge on the magnets when he was cleaning them.
J
JeffD
Yes I agree with that, you should dump all system cleaner out before flushing and dumping then you will get a true reading with TDS
S
supper plumb
If you don't think it has been done properly test the water with some ph paper. A few quid for a roll. Should be around 7. Test the total dissolved solids, get mains water test it, then test the central heating water. If he has added inhibitor it will be higher than the mains. Think about 800.
E
ed209
It would take the best part of a day to power flush correctly even then I'm not convinced its that effective I've found one of the best methods assuming all the rads work to some extent is to put in some sentinel X800 and let that circulate over a couple of days then do a complete drain down several times.
Did he charge for a power flush? This can add a significant amount to a boiler change if you specifically wanted a power flush.
Did he charge for a power flush? This can add a significant amount to a boiler change if you specifically wanted a power flush.
J
JeffD
Id like to se you put x800 in a very stubborn cistern, when you drain it down do you think your removing all iron, power flushing as been out for years and if done properly you can definitely get 20% saving on gas bill of boiler, this is a proven fact, all you are doing with x800 and boiler running is munching it up but you need to get it out of the system.
E
ed209
It was a bit early when I wrote that Jeff
But I have found x800 to be very effective and was not suggesting you put it in a stubborn system just one that is functioning reasonably well just to further cleans it. The power flush bit got me when you now have the additional magnet filter option, this says to me that power flushing without is not very effective or is it to speed the process up?
But as stated a proper day long power flush can add a lot to a boiler change.
Money you would be better off spending on a chemical flush through and a decent in line filter on the rerun pipe that works as the rads/pipe/fittings/boiler breakdown internally over the years
But just my opinion I'm always interested in other methods that I have read on here and other forums.
But I have found x800 to be very effective and was not suggesting you put it in a stubborn system just one that is functioning reasonably well just to further cleans it. The power flush bit got me when you now have the additional magnet filter option, this says to me that power flushing without is not very effective or is it to speed the process up?
But as stated a proper day long power flush can add a lot to a boiler change.
Money you would be better off spending on a chemical flush through and a decent in line filter on the rerun pipe that works as the rads/pipe/fittings/boiler breakdown internally over the years
But just my opinion I'm always interested in other methods that I have read on here and other forums.
E
ed209
Sentinel now do X400 which is designed to stay in the system and work in conjunction with a filter
I have no connection with Sentinel by the way
I have no connection with Sentinel by the way
a powerflush machine works alot better than just a chem because of the extra flow rate/movement in the system created by the machine.
in many cleaning processes the use of a combination of cleaning chemicals, heat and movement are the ideal/ best method. think of your washing machine using a cleaner, adding and warming water and spinning it around as an example.
one way of looking at it is.......... you want to clean some dirty slabs, you mix a cleaner in hot water and apply it on the slabs to let it loosen the dirt. You then can either swill it off with a bucket of water or use your garden hose with mains pressure. not a very good example i grant you 🙂
in many cleaning processes the use of a combination of cleaning chemicals, heat and movement are the ideal/ best method. think of your washing machine using a cleaner, adding and warming water and spinning it around as an example.
one way of looking at it is.......... you want to clean some dirty slabs, you mix a cleaner in hot water and apply it on the slabs to let it loosen the dirt. You then can either swill it off with a bucket of water or use your garden hose with mains pressure. not a very good example i grant you 🙂
E
ed209
Well I suppose that was was I was getting at by putting the chemicals in and heating the water and movement around the system for a couple of days or more by the pump running the boiler, then a complete drain down.
I'm not anti power flush and have used mine very successfully where necessary.
I'm not anti power flush and have used mine very successfully where necessary.
J
JeffD
Yes everyone to there own, I just think a boiler won't move iron oxide like a flushing machine will but if it works for you then that's all that matters.
I am a bit late to this one, sorry but why the hell is the OP not talking to their engineer about what they have done ?
It kills me when they select a professional to carry out work of them, have them do it, then come on here asking the in's & out's of a technical subject without speaking to the person they are employing first. What do they want ammunition !!!
By all means ask if you don't think you have had a satisfactory answer but have the good grace to talk it through first.
It kills me when they select a professional to carry out work of them, have them do it, then come on here asking the in's & out's of a technical subject without speaking to the person they are employing first. What do they want ammunition !!!
By all means ask if you don't think you have had a satisfactory answer but have the good grace to talk it through first.
J
JeffD
H
Householder
Thanks for all the interesting views and helpful advice - very much appreciated.
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T
tamz
I'm afraid i side with Chris. You employed the "contractor" so get the answers and explanations from him which i believe from your last sentence you have to your satisfaction.
J
JeffD
A filter on a machine would be magnets as the way to remove sludge, people call it black sludge,it's iron oxide which obviously sticks to magnetic filters, so if your sure then jobs a good one.
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