stevelup wrote:What about two halves? Smear both halves with silicone, place over the cable and shove in the orifice?
Doesn't need to be flexible then (which is a problem), and no holes to fill...
Now why didn't I think if that? (Well I know why)
That is the blindingly obvious answer!
Only problem is there isn't much clearance from the top of the open drainpipe to the bottom of the electrical cabinet above.Maximum 20 mm in position.
At present the pipe could be pulled out from under the cabinet to push the 'plug in, then swung back into place, pipe secured to wall and backfilled ground hole but distance from rim of pipe(internal diameter 65 mm)/lip of 'plug' to top of 'dome' is 20mm maximum.
The length of that portion of the 'plug' within in the tube is not a problem while pipe can be swung out.
Pipe's black so black would be cool tho I've still got some black Hammerite.
Gorilla filler would stick the halves, seal the edges and the10mm flex hole.
Except I've got several projects waiting for gorilla sealant so I don't have to clean out the spout multiple times, a job I hate as I can never get the ruddy silicon off my hands.