regedit

I guess it depends on what you want to do with the results. I scanned a load of slides using a flat-bed scanner (Epson Perfection) and the results were fine if you just want to view on screen or put on a slideshow DVD. Not got round to the negatives yet...

25mm (2") White flex pvc used for cable conduit can be found in decent electrical stores.

If you use HomePro's 'free'/cheap install service, suggest you make sure that whichever contractor they send out to do the job uses the right size cable for your water heater (check the manual). I've caught them twice trying to cut costs by using smaller size cable than they really should.

There's probably a typo in .pdf but it's not the cable size I'm asking about now (yes, 10mm to the rod).

electau, on 2012-03-07 06:55:46, said:

Quite right. When I got to the end of the earth cable I discovered that someone had 'forgotten' to attach an earth rod, leaving the end of the cable just buried in the soil. That was quickly fixed.

There is no MEN link on either DB.

Running an earth conductor from the 1st DB to the 2nd would mean going through ceilings, walls and a concrete floor, something I'd like to avoid if possible, at least until the next round of decorating. Is there any safety benefit of doing this vs a TT system ?

The L&N connecting the DB's have been there for several years - unfortunately they forgot to earth either DB. So I'm trying to fix that. Both DB's can be RCD/RCBO protected - I'm prepared to replace both DB's to accommodate them. I should also mention that there are 2 showers each with their own earth rod. Attached diagram shows the current set-up. Other than the missing RCD protection, would there be any other concerns with this that I should consider ?

Thanks for all the help and advice.