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    Wiring sockets on opposite sides of a wall

    Hi, I am in the process of wiring two sockets, on opposite sides of the same wall, with the sockets directly behind each other. Just to be clear, this would mean that the wires are connected to socket 1 and then the cable goes from the middle of the backbox, straight through the wall to the...
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    Type AC RCD upstream of Type A

    Hi, I am planning to install an outdoor socket as a spur from an existing socket on a 16A radial circuit. When initially looking at the work, I realised that the circuit is not RCD protected. Because I wanted to keep the internal socket, I decided that I would buy a FCU with RCD, put that...
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    Sign off for consumer unit changes if circuits are non-compliant

    Hi, I am hoping that somebody could help me with a quick question, please. Can an electrician make changes to a CU (either adding RCDs to existing circuits, replacing MCBs with RCBOs for existing circuits, or changing a whole CU but not adding new circuits) and sign off the work, if there are...
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    Daisy chain down lights - continuous cable or two branches?

    Hi, I am currently in the process of replacing the lighting in my hallway. The existing light is a single fitting, which sits halfway down the hall, directly below a junction box (pictured). The light is wired to two switches in the hallway. My plan is to - replace the current junction box...
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    Shower panels + Marmox + Tanking = Overkill?

    Hi, I am going to be creating a shower enclosure with shower panels. They are 10mm PVC, and are tongue and grove between panels and an aluminium corner profile. Under the shower tray will be 18mm marine ply. There will be two panels on one wall, and one on the other, so a single t+g connection...
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    What the best way to run the waste for this shower?

    Hi, I am looking to install this shower and tray in a bathroom that I am refurbishing. https://victoriaplum.com/product/mode-hardy-8mm-easy-clean-shower-enclosure-and-stone-shower-tray?options=size|1400_x_800 I'll be replacing the sink and toilet too, but I am keen to get the shower installed...
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    Thermostatic shower - bend vs elbow - real impact on flow rate

    Hi, I am currently working on the pipework which will feed a thermostatic shower. This one to be exact: https://www.wickes.co.uk/Mira-Honesty-Exposed-Rigid-Diverter-ERD-Mixer-Shower/p/233965 I am going to batten and plasterboard the wall, and want to minimise the gap and also avoid chasing, if...
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    3kW generator to internal socket

    Hi, I recently bought this generator as in backup, in case of power cuts. https://www.screwfix.com/p/impax-im2800ifg-3000w-inverter-frame-generator-240v/859hp I will only be using to keep our fridge and freezers going, and to power the odd appliance, charge portable lights and electronics if...
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    Extension for this cable

    Hi, I am trying to find an extension for this lawnmower cable. Pics at the bottom of this post. The cable is approx 10 metres long and I want to get an extension of another 10-20 metres. I currently use the cable plugged into an extension reel, which requires regular re-positioning. I suppose...
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    Low voltage external lights for covered patio

    Hi, I am looking to buy some festoon type lights for a 40m2 pergola over a patio. Even though the patio has a polycarbonate roof, and so should keep the lights and cabling dry, I wanted to find some low voltage lights. Almost all of the ones I can see on Amazon appear to be mains voltage, with...
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    Need to save an underspecced roof

    Hi, I have constructed an attached pergola roof with the following spec - C24 2x6 rafters with spans between 4m and 4.8m - C24 2x6 wall plates - C24 2x6 bressummer - bressummer supported on 100x100 posts at 3m spans and fixed to wall at one end - rafter slope is ~5 degrees. - rafters sitting...
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    What made these zig-zag marks on pressure treated timber

    Hi, I am currently working with some 6 metre long 2x6 timbers. I have bought a number from the same supplier, but I have noticed that latest batch all have a zig-zag marking on them, and I would like to understand what it is. It almost looks as if the timbers have been joined at that point. I...
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    Polycarbonate overhang and guttering

    Hi, I have built the timber frame of an attached pergola, out of 2x6 timbers, with 100x100 posts, per the design below. The angle of the rafters is 5 degrees, and I have added two noggins between each pair of rafters. I want to add a polycarbonate roof and a gutter to run along the cross beam...
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    Sister cross beam to extend pergola

    Hi, I partially built a pergola last year and put in place an extra post (1) for future expansion, alongside the existing posts (2,3) I now want to add a new cross beam (5) between the posts to continue the work. I think that the normal approach would be cut the existing beam (4) above post 2...
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    Corroded bolts on post shoes with incised timber posts

    Hi, Last summer, I installed three 100x100 incised timber posts in post shoes, bolted to a patio, as part of an attached pergola. I am in the process of installing a further post to extend the pergola, but upon inspection of the original posts I noticed that the bolts which tighten the show...
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    Best place to drill through aluminium door to fit maglock

    Hi, I need to drill through an inward opening aluminium door to fit a Z+L bracket for an electromagnet lock. I am only fitting the lock to the left side door shown in the pictures. I would like to put it in the top right corner (A), but I am not sure what structures might be inside the frame...
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    Is this cable OK for maglock and keypad?

    Hi, I am looking to install a electromagnetic lock, controlled by a keypad, and two exit buttons, and a buzzer. I have the setup working with a bench supply at moment and the lock, along with the keypad is drawing 0.55amps @ 12v. I need 6 wires for the keypad (12vin, 12vout, gnd, opensw and 2...
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    Drying time for mortar before priming surface for tiling

    Hi, I am currently repairing an area of tiles which had come loose, in a shower. They are in the bottom of a recess, which is actually a window frame (still has a window on the outside, with boarding in between. When I removed the tiles, the old adhesive was very crumbly, and when removed...
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    How to account for settling of new slabs in the middle of existing patio

    Hi, I have a patio which is approx 9 metres by 5 metres, but which had two brick planters built into it (either side of the centre). I have now removed the planters which has left me with two spaces that are exactly 2 slabs by 2 slabs, and I have a number of those slabs available. I therefore...
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    Using LED batten as a junction box

    Hi, I'm in the process of replacing an old batten light with an integrated LED one. When I opened up the original, I found that all of the cable junctions were contained within the batten body, rather than in the ceiling with a single cable dropping down. I think that part of the reason that...
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