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thanks for that. Any other tips peeps?

Thank you, it is not blocked, it is letting water into the system and therefore the overflow is constantly running. I have had a problem with sludge and intend to flush the system at the same time as replacing heat exchanger.

Is this fairly easy or a job for the experts? Model is Sime 80. Any tips? Thanks

Well, I dont know if I have answered my own questions, hence the post for advice. I have to wait a month where I live just for a plumber to have a look at it, so I am afraid I am still waiting in the cold for help :(

Hello?????

Bump guys!!

ok. looking at a diagram, I assume now it must be secondary heat exchanger that is faulty and letting water into system? Pressure is staying same. With regards to inhibitors/flush, can I put this in a new radiator before installing? How do I clear the sludge, is it a matter of taking each...

Thanks... OK, disconnected infill pipe at boiler end, not leaking but overflow is still leaking. What next guys and gals?

anyone???

bump guys..help

what I meant is pipe is stiff when tap is turned on, If i turn tap off it slackens. What I wanted to know is if I disconnect the inflow pipe using one of the screws at either end, will water then leak out of either the mains inlet or the radiator inlet?

Bump......help please

How do I disconnect infill loop? It has a screw off fitting on each end, any end in particular to unscrew? Also if I take it off what happens to pipework, does this need a valve shutting or anything to stop it leaking? cheers

bump....just so you dont forget the unbathed here :cry:

It only started overflowing like a cpl of months ago, so I cant blame plumber for anything. Heating is fine and Rads never need b leeding (I keep checking) However there is sludge in the system probably due to oxygen getting in which I assume is same problem as overflow constantly flowing...

Well your pretty close to Otley, are you busy? All local plumbers cant even see me for a month. Anyone any ideas about the hot water, it heats up but then goes cold straight away. I really want to fix this myself so I understand how it all works better, but obviously I need the help of...

What a div, I turned it wrong way :oops: Anyway, No water coming out of taps or overflow now. What does this suggest? Anybody?

Hi All Turned off stop tap and still overflowing, what I dont understaand is I can still run cold water even though I have turned stop tap off. Why is that? Any more suggestions?

I am gong to try taking fill pipe off and see if tht helps, but it seems to stifeen when turned on, so I think this is ok. (ie turned off and slack until i open tap) having said that, i cannot see why it can be overflowing, pressure is only at 2bar, so should not be pouring out? It is as...

Cool reply...so i take it that the pressure is ok, especially as it performs well on all boilers.. Any advice on the overflow prob?