"Pete Verdon" d wrote in
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At the side of my house there's a rainwater drain that, being near the
outside tap and hose, tends to also get used as a general drain for waste
water (only water though, nothing nasty). However, around the drain itself
is basically just mud. I'm considering slapping some concrete around it to
form a kind of shallow funnel and to fill in a manky muddy gap between the
house wall (below the DPC), the boundary garden wall, and a piece of
concrete forming part of a patio (it's a complicated layout). About half a
square metre of concrete.

In the same area, though, is a run of SWA that supplies the shed. It's
clipped to the house wall, the side of the patio, and then to the garden
wall to run down to the shed. This new concrete I'm planning would be
poured over part of the cable, so it would come down the house wall into
it, then emerge up the garden wall on the other side.

I don't expect to need to modify the cable. Any reason not to just
concrete it up as proposed?

Might it be worth laying some kind of duct to allow for future additions or
mods?
N