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My first time doing so. The place hasn't had a flush in years. It's a system boiler with indirect invented cylinder. Is it possible to use the mains fill to flush the system out? So far I know to turn everything off and manually open the 3 and 2 port valves. But what valves should I close and...

The mains water supply goes under the driveway into the front of the garage where there is a large stopcock. It then travels about 3 foot into the boiler cupboard, still inside the garage, where there is another stopcock just before the multiblock and next to the boiler. That stopcock is...

I'd like to clean the mesh filter. Cylinder manual says "Unscrew the head in the inlet control set and clean the mesh filter within". Which bit is that? (I know to depressurised everything before, don't worry) Thanks

I've got a 300L unvented indirect cylinder with a 22L expansion vessel. All installed in 2011. Just been having some issues with the expansion vessel leaking air and while reading online I also leant that it could be too small. Apparently it should be at least 10% of the capacity of the...

I've had a few leaks from the spindles of my towel rads. Those leaky valves seem lower quality than another valve I found today in my spare parts cupboard. The bigger one is the one that's been leaking. The one with the brass (I assume) is the one I unearthed that I think is higher quality...

I've got some old mains powered interlinked smoke alarms that need to be replaced and getting the same model is quite pricey compared to other options. Do they all share the same wiring? Mine uses 3 core and earth - live, neutral, and the interlink. I assume it's yes but wanted to double check...

Got another flipping leak around a valve spindle, this time on a towel rail. Can internals be bought rather than the hassle of fitting a whole new valve? Just the front 'cartridge' bit or whatever it's called.

Water is coming out near the spindle and gets worse the more you open it. Can I undo the bit next to the spindle and put PTFE tape on it, or is it something else?

Bit of a disaster and sorry for the graphic imagery. Just installed a new toilet with a concealed cistern behind a cabinet unit that extends to the sink. I thought I had it all fitted then took a number 2 only to realise brown water came gushing out from behind the cabinet. I do a lot of DIY but...

I have a split level bungalow with a small (900mm total rise, 800mm width) staircase where one side is against the wall and will have a handrail installed, while the other side is just open (no ballustrades, posts, handrails, nothing). I am planning to rent it out after finishing renovation, is...

I have a black worktop with an unfinished side that I'm trying to bevel and polish up. I think it's acrylic/stone mix as it smells of plastic when polishing. I'm using these polishing discs and went from 50 up to 8000 grit using each grit and using water past 400 grit as recommended. It's ended...

I have a small 60W electric towel rail that I'd like to fit outside zone 2 in the bathroom. There's already a blanked off spur in that location so I'd connect it to that. That spur is part of the main ring circuit which is on a 32A 30mA RCBO. Can I just use an isolator switch with flex outlet...

Originally the telephone drop wire ran to the master socket in the centre of the house along one of the exterior walls under the eaves. I've just completed an extension that now means the drop wire it running inside the house to the master socket which is still in the same place. Here's a little...

There's a three gang light switch that used to turn on three seperate lights. Two lights are disconnected now leaving only one light which is turned on by the middle switch. However, there's only two T&E cables going to the switch to control three lights which is what I'm confused about. Diagram...

Got a situation where I've built an extension (blue roof below) where the pitch is different to the roof it joins to. So I need to redo the valley as shown below. Would it be ok to have the valley trough change direction slightly? I won't bend the trough, but cut a section to join it at the...

I've followed a series of videos (here) on how to find the correct size beam required for removing a 6m wall in my bungalow to open it up into a new extension. Following the video I'm pretty confident in the calculations, but I need to see about a padstone. Now onto seeing if I need a pad stone...

The house in question is quite old and has a combined drainage system. There's a soil pipe from the toilet that runs beneath a roof eave where there's a raingutter downpipe. What fittings do I need to connect the rainwater downpipe to the toilet soil pipe? Would something like a rear inlet...

I put in new double glazing windows and am soon getting the roof done on an older bungalow, older being not new built but decades old (I have no idea how old). The current structure is as shown below: At the moment there is the original concrete lintel on the interior block wall. Above the...

Been doing an extension on an old house and now it's time to get the internet sorted. The current master socket is basically antique and needs replacing. I'm aware this is the property of Openreach and there may be consequences but I'm willing to take the risk. Anyway, what master socket should...

Hi, I have a few areas where I need to join four 1.5mm² wires together (for a lighting circuit). I only have the Wago 221 3-way and 5-way connectors (all 0.14 to 4mm²) and they don't seem to sell 4-way connectors. What should I do, use a 3-way and double up in one of the holes (after all, 2 x...