Search results

I've had one of these old grinders for years and it has unstoppable torque https://www.ebay.co.uk/itm/186908994986 I think I paid £12 for it as the photos made it look cheap but its all metal. I tried a cheap modern one and it just stopped turning when you put anything to it. The old british...

Can you explain that a bit more? I'm just about to stick one of these easy off lever jobs where the stiff old stopcock is but there isn't another valve or drain, where is the regs explained for that...

That sounds like the one in the pavement. Which then suggests the one in the house could be as you like?

how can there be air in the system that doesn't rise to the top of the radiators but only comes out when the boiler is running?

Yes nightmare. Feels like one of those things where in the end it will turn out to be something stupidly simple that has been overlooked. Is the water coming out of your cold tap full of bubbles?

I guess an air separators is designed just for this where an automatic air vent isn't doing it and there is an issue with the system design. Still feels like a bodge rather than proper correction but if thats easier than getting the boards up and changing the pipes it might be the right solution...

that wouldn't trap air. Might be an old redundant loop somewhere. If you can hear the water trickling that is the sound of water falling through an air pocket so you should be able to find it roughly by that

If it doesnt rise or fall, and no air comes out of the rads, you must just have an air pocket in the pipes. But why would it get worse after it has been ok...

adding an air vent isn't really the full solution of course, its treating the symptom not the disease. Because you say you can successfully clear the air after a drain it must be finding its way in even after closed

so where is the water going? Only other way I can think where you might not notice it is through the domestic hot water heat exchanger has that been looked at? But that doesn't explain how air gets in

waterfall and trickling noises are water falling through air. If the air doesnt come out then you have an air lock / pocket at least partially. Find where the noises are exactly and consider adding an air vent in highest part of that area.

Its all sounding too weird though. feels like you need to go back to basics. After the system has been off for the day leave all the rads on and the boiler OFF and go around the house and see if you can bleed air from the rads.

was just thinking that, it must be losing water but then drawing air in when running. Faulty pressure relief valve? Is water dripping out of the pipe at the back of your house?

makes sense that more air is upstairs, and BR is noticeably more than the others? or is B3 similar? Why do you turn off the rads to bleed? You need the water to be able to move around to fill the space left by the released air. Start downstairs and work your way around the house leaving the...

So its probably not significant that you'll find the colder ones at the furthest point first rather than its a clue that there is a air leak at that furthest point

Is the system pressure normal and the automatic air vent new? They're only cheap so its worth getting a new one. I had a funny one with my airvent, I changed it for new and noticed it came with a plastic tap sticking out of the bottom which i puzzled over not sure if it was to be left in or...

So the furthest away first, like if the pump was weak. I guess if the system is full of air the aerated water will leave the pump with less force, like spongy brakes in a car with air in the system, the bubbles compress so the forward momentum is lost. The pump will also mash up the air into...

when i said how long left i mean in terms of the air being small bubbles how long the system has been off to allow the air to rise to the top and form a normal single air bubble at the top. If its all day and the air stays suspended in the water that must be a symptom of something specific as...

How long have you left the boiler off for the air to settle and rise to the top? Curious why the air might be staying in small bubbles, looking it up seems like inhibiter can do that on purpose to stop large pockets of air forming. if you tried a new inhibitor maybe flush and try with none...

I don't wire wool the pipe shiny like i would for soldering, the original finish is nice and smooth and I always use a smear of jointing compound because why not. Then a good bit of force to tighten, I've never managed to cause a leak by over tightening so tend to just go for it with normal...