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I should have done that yes - I am sorry about that If I take off the flow pipe and put in bucket how many litres a minute should i get into the flow pipe so I can measure the flow speed Are you in agreement that rebending the flow pipe downwards wont work - I am trying to clutch at straws I...

The pump might disturb the one pipe system and cause other problems i am going to dry to bend the flow pipe downwards so gravity can push water into the coil - I know nothing about this subject and work in IT so I am probably wasting my time Failing that I am going to look at running a new...

I am so sorry you took it the wrong way - I just wanted to be super sure that my understanding was correct You have bee invaluable in helping nail down the flow issue with the bended pipe and I am really appreciative I really did not mean to offend - If you could please continue to give me...

Sorry I think you are mitaken - Water is moving in there but I have a feeling it is slow running because of the pipework restriction! It was working before but witha different copper cylinder true which had bigger coils no doubt. There is a pump on the boiler return which as you said pumps...

Wow that is a solid answer and very accurate - I can confirm this is kind of true from my limited experience 1) It is difficult to take a new flow pipe from the boiler sadly : ( so I do not think this will work like you prefered 2) If I rebend that pipe and use 28mm pipe and gravity into the...

Mid way - But the flow pipe was 2 inch pipework (not 22mm) and went into the top of a copper cylinder

Yes if I am honest - Or turn off the TRVs

My system is "complicated" It’s a one pipe system using two inch steel pipework for the radiators and main flow and return - Work was done to get a copper thread for the hot water cylinder flow but the rest of system is in steel pipe work - Not ideal but does work Flow is pumped but return...

Thank you - I really try and understand my system 1) I have a pumped flow pipe which tees off for hot water cylinder and then gravity returns back to the boiler - I believe this is therefore "fully pumped" ? 2) The cylinder is "suitable for only fully pumped" system 3) System is running for...

Im so sorry - I just dont understand this - The air vent is higher - The water will collect at the top of the airvent before releasing air I really dont want to pay 150 to have a pipe rebent if it wont solve my issue - Please help me to understand your suggestion Thank you so much

It should come out of the side otherwise you will have air in the pump - Do it once and proeprly

A very good point - It should have been fitted from the side entry

I know the horizontal pipe is higher at the left - My point was that the air vent is higher then even the highest point of the horizontal pipe so no air should collect in there? I also worry that the flow is being restricted with all these bends which will explain why the cylinder never gets...

I am having another plumber attend tomorrow - I want to understand the fuss about the flow pipe being slightly high Isnt the highest point where the air vent is? If so any air will come out of the airvent which is highest point on the run - When the boiler is working the flow pipe is red hot...

Im starting to think the same - Is it so hard for them to make it from brass? Which filters are your top choice?

I have a stuart tuner 3 bar pump and the noise is also very audible - I wish I had gone unvented but its too late - These things make noise and there seems to be no way round them Mine is sat on a plywod base and a rubber mat pecially made for these pumps but still noisy sadly

I have a 28mm magnaclean filter - It was installed six months ago and working - I took of the lid to clean the sludge and tried to put it back - It was leaking and I got a new filter which was installed Today I drained down the filter and took off the cap - I put it back on and its leaking...

Is there anything I can do before incurring more expenditure as a diy enthusiast ?

The gate valve is fully open yes I am sure The old copper cylinder was leaking - Now its been replaced

This system worked before yes - I think if I have to slcken the nut I cant do that. The plumber came highly reccoemended and is 70 years old - The PTFE is maybe excessive but apart from that its ok no?