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Ah, understood. Thank you, I will do that.

Ha ha I had the same thoughts. I checked the gas safe register: https://www.gassaferegister.co.uk/ he and his company are registered.

Yeah 1 bar I charged it to. Are you saying 1.5 bar woud be better as it gives me 0.5 bar safety margin?

That is what I thought. I've just recharged it to 1 bar (after de-pressurising the system) I wish what I witnessed suggested anything as calculated as that. I was chatting with him the whole time and prior to this, he didn't check the presssure at all, and when he let the air out he kept...

I had service engineer out for my annual boiler service and I told him that about 2x a year the system will lose pressure and I have to refill it from filling loop. He was already in the boiler at this point so he took the valve cover off the internal expansion bladder that's in the boiler and...

Here's the thing I refer to as a "gold screw" (and you can see the blue immersion stat dial in the lower left hand corner too):

Originally (before I did anything): Blue - 3 Gold - just under 4 Then about 3 days ago (when I started trouble shooting): Blue - I changed to 5 Gold - I didn't know it existed so it stayed at just under 4 At this point, the water was 53.9 when heated by the boiler, but 70 when heated by...

They're not on together. I've only used the immersion once, to test it, and I made sure the boiler was off when it was on.

So it actually looks like the cylinder has 2 stats - one for the immersion heater (blue dial, numbers 1 - 5), and a second for when it heats from the boiler (gold screw, numbers 1 - 5). Anyway, I turned the blue dial up/down and the valve didn't move. I turned the gold screw to "1" and the...

Thanks. Yeah the boiler has a dial for HW and a dial for radiator temp. I was told that the HW dial does nothing when its used as a system boiler, its just there for when its used as a combi? Either way, I have it whacked to max just in case. Yes, this is usually between 74-77 when its...

Hi. I've got a Pullin Evolution 250l indirect unvented cylinder, connected to a Vaillant ecotec plus 637 system boiler. It heats from the gas boiler normally, but also has an electric immersion for emergencies. My boiler flow temp is set to 75, the HW dial on the boiler is set to 70, the stat...

Thanks, I wouldn't attempt taking it apart - if tightening it up doesn't work I would get someone in to replace it. I'm an 'easy fix = DIY but dismantle/reassemble = call the pro's' type of guy when it comes to boilers. But it looks like just tightening it has worked for now - no more dripping...

Okay, thanks. Will try that.

This valve is coming from one of the pipes that go directly up into my Valiant Ecotec boiler. It is dripping water, filling that green bowl every 6 hours or so. I assume its a pressure relief valve? But the pressure is not any higher than it always is - The boiler is working fine and pressure...

Thanks all, I know what'll be keeping me busy this week then!!

86cm

You're good at this! Its taken me 2 days and countless trips to inspect it, and you figured that out in 5 minutes from a few pics!

I think you're right! I've just been back out there peeling away bits of it - I can see its a metal frame gate with the tongue & groove planks screwed either side (the bread if you like) to blocks of wood in the middle (the 'sandwich filling'). I guess as the metal frame is still good, I could...

I am trying to replace a side gate - what should be a simple task, but I am stumped by the type of gate and fixing I have currently. It is a wooden panelled gate, with 'finished' panels both sides and bracing sandwiched between the two panels. On the hinge side is a metal rail with 2 'eyes'...

The problem is in one tap AND two toilets so the tap isn't the source, just a symptom.