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Thanks for this.
I am unfortunately not very good at understanding instructions, so I could do with it breaking down a bit more if that is ok.
I have highlighted in your quote the parts I don't fully understand.
Here are some examples:
This above is our main radiator where the system can be bled (left picture), and the only one without a TRV. Though it doesn't look like it, the part above the copper pipe joining the radiator is only just over a year old. I think this initially having a poor fit was possibly related to the airlocks we were first experiencing, as this is what we had to adjust to stop them when they occurred. The other image above to the right is on this radiator where it is bled.
The two below are the two newer radiators.
And this is one that seems to look slightly different again, but is one of our very old radiators. Most of the radiators in the house have the same style valve as the top left picture.
I assume you mean F2 here!
I also may as well know what type may be easiest for me to use. I've seen this style in a 265ml bottle elsewhere: Boiler Noise Silencer F2 Express 400ml - UK - https://fernox.com/product/boiler-noise-silencer-f2-express-400ml/
Seems more appropriate for the number of radiators.
Hopefully I will get to understand what you mean.
Many thanks.
I am unfortunately not very good at understanding instructions, so I could do with it breaking down a bit more if that is ok.
I have highlighted in your quote the parts I don't fully understand.
I have looked back in this thread and tried to understand what you are referring to here, but unfortunately can't work it out.Was it making noises when (if) you tried it with both CH&HW off and the hot tap opened?.
Unless I am missing something, it does seem that my radiators are different.This is the plug end you remove after opening the vent (screwdriver slot),
Here are some examples:
This above is our main radiator where the system can be bled (left picture), and the only one without a TRV. Though it doesn't look like it, the part above the copper pipe joining the radiator is only just over a year old. I think this initially having a poor fit was possibly related to the airlocks we were first experiencing, as this is what we had to adjust to stop them when they occurred. The other image above to the right is on this radiator where it is bled.
The two below are the two newer radiators.
And this is one that seems to look slightly different again, but is one of our very old radiators. Most of the radiators in the house have the same style valve as the top left picture.
The rest of what you have said here, I may understand when I work out how to use the vent.you first (after first shutting valves at
both ends of rad) open the vent to ensure no pressure, then remove that blank end, open the vent a few more turns, syphon off a litre or so of water and pour in the F1 via a plastic funnel or whatever, close up the rad, reopen valves top up pressure if required, flash up the boiler and wait for the silence!!.
I assume you mean F2 here!
I also may as well know what type may be easiest for me to use. I've seen this style in a 265ml bottle elsewhere: Boiler Noise Silencer F2 Express 400ml - UK - https://fernox.com/product/boiler-noise-silencer-f2-express-400ml/
Seems more appropriate for the number of radiators.
Hopefully I will get to understand what you mean.
Many thanks.