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  1. T

    Drilling a cast iron soil pipe

    30 minutes rofl. Cast drills easy with a sharp drill and you should be through it in seconds if it's cutting. You'll have work hardened that spot now and it will likely be very difficult to drill. Try a brand new drill roughly the size of the pilot in another spot - slow speed setting and good...
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    Floating sockets..

    @JohnW2 I would say a C3 is anything which isn't likely to be dangerous at this moment in time, but which an improvement would enhance the safety of or bring up to current standards. You make a good point though because I likely wouldn't code a fixed socket although being off the floor is...
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    Floating sockets..

    Unsuitable for location with regards IP ratings etc. That could be considered C3 as that reg was no doubt introduced at some point. The only reason I wouldn't code that would be laziness, which I'm not immune to.
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    Floating sockets..

    Not really imo, there's plenty of hard and fast rules in the regs (max zS values for instance) but equally there's lots of regs where competent persons are encouraged to use their judgement. I'm pretty sure I could find reasons to c2 a loose socket on the floor underneath a washing machine...
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    Wiring diagram for remote humidistat controlled fan with additional manual on/off switch

    Something like these mini grid modules. Get the 3 module faceplate, a dimmer module and mounting kit (2 modules) and retractive switch (1 module). There's a good chance you'll need to fit a deeper backbox though, they recommend a 47mm but you might get away with 35 if you've got one already
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    Wiring diagram for remote humidistat controlled fan with additional manual on/off switch

    Yes, you've sussed it. I would suggest a momentary/spring return switch to basically activate the timer, saves it getting left on.
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    How do I go about this?

    Seems to me you already have a pretty good understanding on a practical level. Have seen you helping people on a lot of threads with thermostat and programmers, you'd be surprised how many electricians struggle with basic control systems. Most of the rest domestic wise is just knowing what is...
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    Remote Garage Roller Shutter opener ?

    It wouldn't work in its current iteration, but maybe the unit failed and someone has bodged it with the rocker switch poorly. What I would do is order the shelly relay I posted and fit that inside your door opener box. You can remove the PCB if it's in the way. I'd also buy a 3 amp fuse and...
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    Remote Garage Roller Shutter opener ?

    Ah, so you actually already have a wireless fob receiver unit, as you say it hasn't been wired in properly. The taped up wagos hanging outside an enclosure in picture 3 is also extremely ropey. Do you have the fob lying around? I think any 433 mhz fob will do with a minimum of 3 buttons if you...
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    Branched ring socket layout

    Unless you'll be plugging in kettles or portable heaters, just make it a 20a radial
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    Remote Garage Roller Shutter opener ?

    Would need to see some pictures of the door motor and inside the rocker switch to work out what's going on, something like that could likely be made to work. Another option would be something like this for app control -...
  12. T

    Running a cable under a driveway

    IMO theres no need to go 500mm deep under a monoblocked driveway, that's hard standing and provides more than adequate protection from damage. Lift the monoblocks where you want to run the armoured cable and dig out some sand, lay, cover and refit. If you're doing a charging post that'll take...
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    New bathroom sink placement help

    Partially close the isolating valve to the point that fully open cold isn't going all over the shop.
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    Advice on EICR failure C2

    I like the change to metal CU's, just feels more robust and better quality. Don't necessarily think plastic ones were much of a fire hazard though. If your existing CU is on a brick wall fire sealing is almost certainly not required.
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    Aico alarm wiring instructions

    Definitely presumptuous, but in an ideal world the grey core has been sleeved blue and the table makes sense.
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    3 electric showers

    Do you have low mains pressure? If not the simplest solution would be just to plumb hot and cold from the combi for your new shower - 24kw+ will give a decent shower (much better than your electric ones) and while the pressure will drop slightly when someones washing their hands, it won't be for...
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    RCD tripping

    Old fcu probably taken off the downstairs sockets.
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    Outside light.

    Maybe you're beginning to realise why the previous owners didn't sort it.
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    Advice on chasing leads into solid wall for TV

    Looking good, socket cable in there already? Just mind and double check you don't have any socket cables going down across your planned route. I'm quite impressed with the build quality, they've not cut corners on your walls anyway
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    Cable size and diversity

    @FiremanT My mum's got a 7.4kw induction hob running off a 13amp plug top (not right but it's not popped yet). Run a cable suitable for a 32amp breaker and you'll be absolutely fine - it is worth checking the manufacturer's instructions though in case they specify lower overload protection for...
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