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3 Radiators do not have TRVs and there is a boiler bypass pipe. Also - the pump appears to struggle even with just the HW circuit open, so I'm hoping it's either the pump or a blockage ahead of the 2x 2port valves..

The original installer has ceased trading, so will call a local plumber. The system seems to be somewhat cursed as within the 3 years its been installed.. 1 2 port valve has died and needed to be replaced. Both the HW and CH expansion vessels failed. Now it looks like the pump has gone and...

So.. having gotten home this evening, I've opened up the magnetic filter and it didn't look too bad. Very little build up, but I've given it a clean and put it all back together again. Fired up the boiler and the pump is definitely struggling. I've tried just running the HW circuit, just the CH...

Actually - my description above isn't quite right. Here's a plan of the system. There are 2 additional ground floor radiators added since I drew this. The pipework from the boiler to ground is 3 years old, from first to second is probably 2.5 years old. The rest is very old, but only the bed2...

The system is part new, part old. The Boiler, HW system and all immediate pipework and systems are 3 years old. There is an 'original' section of pipework servicing 3 old radiators (radiators ~20 years old - pipework much older). The run from the boiler is 22mm for most of the way in new copper...

When this was happening, the pressure was low ~0.5bar. When the water temperature is very low (~20oC), the pressure can be even lower than this. The pressure has always fluctuated quite a lot on the system. Under normal running conditions, it holds pretty steady around 1.5bar, but there are...

This problem has happened twice now, but this morning, the boiler fired up and worked absolutely fine again. I've recently had the expansion vessel on the CH changed, but there haven't been any other system changes recently. How common is a blockage and how on earth would you go about trying to...

My system boiler seems to be exhibiting some very odd behaviour. The heating had been off all day, so the system temperature was around 32oC. I turned the boiler on and it quickly got up to ~65oC. It continued to rise up to 81oC before suddenly dropping back to ~60oC. The temperature then climbs...

Hello, I'm in the process of installing a new 'period feature' in our house - an Edwardian servants call bell system. I've run all new wiring from the call bells to the existing front door-bell transformer which is sited just above the main CU. In order to save me running more wires all over...

Hello, Another question on me on the subject of wiring in LED Tape.. I have ~6m of LED tape connected to a 12v DC power supply. Between the PSU and the start of the tape is a run of around 3m. Because it was a handy size, I've temporarily hooked up the tape with 2 core 0.75mm cable and all works...

I can purchase 2 of the 'low inrush' PSU's - but given they would be on the same circuit (switch), that could still potentially yield a momentary surge of up to 40A. Is there any way around that, or shall I just ditch one of the sections of LED tape for a regular light fitting.

This is where I am beyond my basic DIY knowledge of electrics, but I came across these: http://www.powerpax.co.uk/power-supplies/low-inrush-current-power-supply-series/low-inrush-current-power-supplies-pln-20w-to-100w-series/ Which claim to be "low Inrush Current" LED drivers, specifically...

The LEDs in question are these: https://www.amazon.co.uk/LEDMO-Waterproof-location-Adhesive-lighting/dp/B01MA3AG8V/ref=sr_1_1?ie=UTF8&qid=1510155384&sr=8-1&keywords=ledmo+led+strip+lights&dpID=51-FAsZr%252BpL&preST=_SX342_QL70_&dpSrc=srch The only 'rating' that seems to be available is that the...

I have just replaced one of our wall lights with a LED Tape light and associated power supply. As all was well, I replaced a second wall light fitting (on the same circuit) also with a length of LED tape light and an associated power supply. Now, ~30% of the time that I turn those lights on...

End-state will be to have a kitchen unit in the old fireplace with a worktop mounted gas hob. There used to be an old floor-mounted boiler in the fireplace which vented up a SS liner out through the old chimney. The boiler has been removed, but the SS liner remains. Our builder was doubtful...

Well, this fireplace really is the gift that just keeps on giving! When it rains heavily, we noticed staining at the rear of the old fireplace (circled in red below). So.. I've hacked off all the plasterboard at the back to have a further look. The timbers you can see at the top of the...

The joists are sitting on bricks on the fender wall of the hearth. They're directly on the brick, but that course of brick now has a dpm beneath it. I have indeed also screwed them to the neighbouring joists like a noggin. Does a joist hanger offer any additional support in this instance? The...

As suggested by Vinn, we've removed the concrete surface and all the soil underneath. Couple of findings besides the terrible smell of damp.. The original floor joists are sitting on a bearer strip that was embedded in the fender wall. Both that strip and the joist ends are damp, but...

W're just in the process of renovating our kitchen and were about to embark on tiling the floor when I noticed a damp patch on the old hearth that I'd not previously seen... This appeared after a prolonged period of heavy rain. Now the weather has improved, it's dried out completely again...

..quick note to add.. the reason the builder (who took the wall down for us) didn't take up the floorboards and replace the whole floor with ply was because, in his opinion, the 1 1/2" floorboards were so solid, there would be no merit in doing so. (His original quote had included replacing the...