Search the forum,

Discuss Manually flushing radiator in the Plumbing Jobs | The Job-board area at PlumbersForums.net

Messages
61
I have a cast iron radiator in my living room that I have noticed has been heating unevenly, (hot at top and cold at bottom), I am thinking that the radiator needs flushing?
Although the radiator is extremely heavy so removing it will be a big task and i don't really want to remove the reducing bushes as it was a nightmare to fit them, ended up using boss white and hemp.
Is it possible to flush the radiator leaving the radiator in place? There are two easily accessible T's which i can disconnect the pipework from can i apply a flow at one end and from the return run a hose to outside and just keep the radiator valves open?
I hope that makes sense,
Thanks
 
Yes, you could flush that individual radiator from any flow and return and keep other rads off or other places where flow and return connect through, - like to a hot cylinder or a bypass valve or boiler.
If it is an open vented system it would need the vent and feed pipes plugged temporary to allow you to put mains water through the radiator.
Ideally you are best to drain the rad before flushing it to get full benefit of the power of the mains to clean the lower part or rad.
Also consider using a cleaning chemical first and a magnetic filter fitted to return at oil or gas boiler
 
Yes, you could flush that individual radiator from any flow and return and keep other rads off or other places where flow and return connect through, - like to a hot cylinder or a bypass valve or boiler.
If it is an open vented system it would need the vent and feed pipes plugged temporary to allow you to put mains water through the radiator.
Ideally you are best to drain the rad before flushing it to get full benefit of the power of the mains to clean the lower part or rad.
Also consider using a cleaning chemical first and a magnetic filter fitted to return at oil or gas boiler

Thanks
I recently got a combi boiler fitted and the engineer fitted a magnetic filter, can you recommend a cleaning agent?
 
I have a cast iron radiator in my living room that I have noticed has been heating unevenly, (hot at top and cold at bottom), I am thinking that the radiator needs flushing?
Although the radiator is extremely heavy so removing it will be a big task and i don't really want to remove the reducing bushes as it was a nightmare to fit them, ended up using boss white and hemp.
Is it possible to flush the radiator leaving the radiator in place? There are two easily accessible T's which i can disconnect the pipework from can i apply a flow at one end and from the return run a hose to outside and just keep the radiator valves open?
I hope that makes sense,
Thanks
What sort of system have u got
and how old. zzThere are remedies but only when we know more about your system ok got that now, how clean is the filter ? what sort of boiler and its age.
Rob Foster aka centralheatking
 
What sort of system have u got
and how old. zzThere are remedies but only when we know more about your system ok got that now, how clean is the filter ? what sort of boiler and its age.
Rob Foster aka centralheatking

The new combi was fitted on Saturday along with the filter, there are 5 rads it total, I plan to change them all within he next year apart from the casty which I want to keep.
What else do you need to know?
Cheers
 
ok, did your fitter flush the system out properly ? it seems not to me, and any remedy I will propose might invalidate the guarantee your fitter gave you ...even if the work was improperly completed , oh dear so why are you having to clean a supposedly flushed system
no one can just fit a boiler and a mag filter take the money and walk away....wait to see what the others say. I was going to suggest using a strong mag and agitator on the naughty rad to lift the debris into the system but DONT do yet.
. centralheatking
 
It’s standard on any new combi boiler install to clean and flush out the system. If your man has filled in the benchmark page in the back of the manual then he’ll have stated the system had been cleaned and flushed (with x800 maybe) and dosed with inhibitor.
 
Flushed some large 1960s curved rads at my sisters house using hozelock fittings as the rad valve union nuts were 3/4". Disconnected the unions (system already drained for other work) and screwed the fitting to the unions at each end, attached hose one end out to drain, other end had hose off the mains. Worked a treat!
 
If flushing radiators by removing them and the garden hose method, also wash entire radiator by turning it upside down (on top of pieces of timber to prevent damaging the paint) and put a small amount of water into the rad - no more than 1/4 full say.
Then get someone to help you turn the rad upright and upside down quickly a few times to disturb the crud
 
Fitted and flushed in one day ? One man or two ?
doesnt sound like its been flushed .
However I find them cast type rads are a bloody nightmare to clean , you cant beat normal steel rads .
 

Reply to Manually flushing radiator in the Plumbing Jobs | The Job-board area at PlumbersForums.net

Creating content since 2001. Untold Media.

OFFICIAL SPONSORS

OFFICIAL SPONSORS

Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock