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Dp i cant believe you have got on your high horse about a simple comment which was purely banter. There is no need to have a dig at anyone. I will refrain from saying what i really think. Tony, i really appreciate your help, patience and efforts to help me. Unfortunately there are many forums...

Handbags at dawn. :LOL:

I already had a leaking HW connector, i managed to replace the fibre washer with a standard one from b+q. I may need to do the same with this one. Ill apply the ptfe tape too. So what next regarding the kettling? I appreciate the patience shown in guiding me on the path to a quiet boiler :)

Is the cap nut the large one? I only have a shifter that size and it was a struggle tightening it, between the cupboard and the filling loop. There is a drip from the big nut. I dont want to over-tighten it and make things worse. Will i apply some LSX that i have?

I removed the gauze filter and it was slightly clogged with rusty sludge, i thoroughly cleaned it and refitted it, the kettling is still there. Now the chrome return fitting leaks, what is the correct way to fit the nut, there is 2 nuts, a big one and a smaller back nut. There is a filter on the...

Yes some other opinions would be nice to hear. I have taken a couple of videos to see if that helps. I also did the test on a metal kettle which was just boiled, the flow pipe is not as hot as this but its not far away. click pics to see video

The left flow pipe, is 'too hot to hold' its a case of touch it and let go right away The right return pipe is 'nearly as hot' but i can touch it for 1 second. would it help if i made a wee video? i dont think i done the test correctly earlier

Tony Its a grundfos pump, the installation manual shows a setting switch on the side of the black plastic cover, my pump does not have this. How is the speed adjusted on mine? Im not sure if its relevant, when i switch my heating on, ch set to max, its quiet for a few mintues, then the...

Cheers Tony I opened all radiators on full, opened upstairs windows to try and keep the boiler firing. The first time i tried it i had the CH set to max, the pipes were too hot to touch, i then let the system cool and set the CH to 50%. The temp lights on the boiler were at 60 deg. Flow -...

Tony, should i just add one of the treatments and see if it helps. Im not in a position to get a professional out.

I dont have such a thing, i cant afford to buy anything either a sim unemployed, is there a cheap way of conducting this test? Do i need to set the CH to max and open all the rads to max?

cheers tony, here is the conversion results below, im not sure if it makes things any clearer. What do i need to do, measure the temp difference between the flow and return pipes? What do i use for this task?

Tony, do you have any suggestion for what treatment i should go for first? Its getting worse, i have turned the CH dial down a bit to keep it quiet. I have not added anything yet.

hi i found a conversion tool, i hope this is what makes sense to you 28.63 mg calcium carbonate/l is equivalent to 11.45 ppm as calcium. This is soft. 28.63 mg calcium carbonate/l is equivalent to 28.63 ppm as calcium carbonate. This is soft.

Should I call and ask to confirm hardness? The max heat output is 31kw, the max heat input is 34kw, i have the installation manual and user manual. Does it depend on the hardness which treatment we go for?

Thats reassuring the mains pressure is ok, the boiler is now always 1 bar when cold after fitting the new EV. When hot water is on full i used 35.31 kw in 2 minutes. Im not sure if its relevant but my hot water does not seem to be that great from the mixer tap, its 3ft from the boiler, if i...

i found the report online for my water supply, from memory the ph used to be around 7 as i used to test my fish tank water regularly. Hydrogen ion (ph) (last 12 months) pH value min-6.90 aver-7.96 max-9.20 i will go and read the faq. What pressure should i set my supply to the boiler, i...

thanks mate i will hold off , the bottle is still sealed to i can swap it if i need one of the other treatments.

Very interesting. I just got back from b&q with a 1L bottle of x200, i have not opened it yet. I should be able to figure out how to get it into a rad bleed point My postcode is ka20 4da. I dont know where my water supply comes from but i know it is soft. Will i go ahead with the x200 treatment...

cheers tony what you suggest does sound likely, it has been run for a long time without addative. What size of x200 do i need and whats the easiest way to get it into the system?