Underground services

I'm pretty sure you should have physical seperation between mains and phone/data, which is why you get compartmentalised trunking in offices.

OK, thanks. Two conduits, then?

Also, how the hell do you get the initial rope pull through the conduit so you can pull the remaining services?!?!?!?

SWA + conduit???

Yes Virgin has used the same bit of stuff on a neighbours system and now her phone sounds like its picking up weird digital modem like sounds all the time. It never did this before they tidied it up. I think the same rule applies to when you build things electronic all over a bench, they work perfectly, as soon as you put them in a smart box its not going to work. Besides, surely water and power need to be completely separate and given the low cost of plastic pipes these days, it seems daft to scrimp on this. as long as you keep safe what stuff runs in which bit of course! Brian

Its probably worth putting a couple (at least) of small diameter cords down so that, later on, when you remember that 'this is an essential' you still have a pull-through in the conduit.

Cheers.

Yes, thanks, I was going to do that. Indeed, I was just describing the idea to my wife, who looked absolutely fascinated. Not.

Thin string tied to a bit of cloth, vacuum cleaner?

Mains and other stuff must be separated by a largish gap, so either partitioned conduit or just two of them.

I'd do a single sub-main and then a small consumer unit in the garage.

I'd like to know too. I'm about to do lighting in my (indoor) workshop.

Seal one end of the conduit around the hose of a powerful vacuum cleaner. Tie string to a light ball that nearly fills the conduit and feed that into the other end. Flake out enough string to suit the length of the conduit. Turn on vacuum cleaner and wait for ball to arrive at other end.

Stand on the roof?

Sorry, I missed the bit about the length - others suggest suction; I'd try blowing a small ball with light line attached using a leaf blower with the outlet suitably adapted down and sealed to conduit.

A single run of 35m of conduit, in the diam you seem to be looking for, isn't going to be the easiest to handle (or find probably ) wouldn't you be better breaking it into shorter runs and properly jointing them together.

Maybe tie a string to a ball of kitchen tissue and suck through with a vacuum? Or use a fish tape.

You put the pull cords inside the conduit as you bury it !.

Alternatively, get some lightweight string (or even knitting wool), and affix to a ping pong ball or similar, which is a loose fit inside the conduit, then attach your Henry or Dyson to the other end and give a good suck.

dont forget to tie the other end of the string or wool to something before you start sucking.

Or borrow someones pet hamster or rat ....

I've seen drums of continuous conduit used often enough. And some even come with drawing tape fitted. See eg

I'm told a strong magnet and a large nut will pull a _thin_ (eg fishing) line through smooth-walled conduit that's flat-ish. But I've not seen it working.

En el artículo , Huge escribió:

That's a definite no-no

Physical separation required between mains and LV, so two conduits plus a separate water pipe, or SWA + conduit + water pipe.

Did you get your random RCD tripping resolved? (If you posted with a resolution, sorry, must have missed it)

I suspect that's so the lights don't also go out if the power goes off while you're working with a whizzy tool with sharp bits.

Use lightish string first, blow it through with compressed air. It'll go round corners and works much better than you might imagine.

Cheers

From what I've been reading, joints are something of a no-no.