Accrington Web - View Single Post

mattylad · 28-01-2009, 09:00

As far as I know.

What all this is, is the iron oxides from the inside of the radiators as they disintegrate from the inside out.
It affect the system, it gets into the heat exchangers & can clog up the boiler to an extent where it prevents proper function of the boiler you need expensive parts replacing.

You can get chemicals to put into your system to help reduce it, also to aid removal prior to a powerflush.
A powerflush will involve connecting a pumped system to your piping after disconnecting the boiler and high pressure pumping while opening individuals radiators to clean them.
It can cost £2oo+ as it generally takes several hours/1/2 day.

There is a DIY way of doing it, involving putting the chemical in for a month+ beforehand, then connecting a hose to one of the pipes (cant remember which exact one but the info is on the web), with all the radiators closed, open one & flush through with max pressure water (draining off into the drains etc), close radiator - open next one & so on.
More information can be found on the web about this.

I intend to do this in the summer on our ancient microbore system.

28-01-2009, 09:00	#7
mattylad Senior Member Join Date: Jun 2004 Location: Far Far Away Posts: 755 Liked: 0 times Rep Power: 851	Re: Black Water In Radiators!!! As far as I know. What all this is, is the iron oxides from the inside of the radiators as they disintegrate from the inside out. It affect the system, it gets into the heat exchangers & can clog up the boiler to an extent where it prevents proper function of the boiler you need expensive parts replacing. You can get chemicals to put into your system to help reduce it, also to aid removal prior to a powerflush. A powerflush will involve connecting a pumped system to your piping after disconnecting the boiler and high pressure pumping while opening individuals radiators to clean them. It can cost £2oo+ as it generally takes several hours/1/2 day. There is a DIY way of doing it, involving putting the chemical in for a month+ beforehand, then connecting a hose to one of the pipes (cant remember which exact one but the info is on the web), with all the radiators closed, open one & flush through with max pressure water (draining off into the drains etc), close radiator - open next one & so on. More information can be found on the web about this. I intend to do this in the summer on our ancient microbore system.