Fitting a rotary washing line in

[kat83]

hello, i need to put a rotary washing line in my garden, just not sure how to go about it! If i use a 'ground spike' do i still need to use cement?! Many thanks in anticipation, kate

[buildersmate]

The trouble is that these things put enormous lateral force on the pole when the wind blows, so if you don't anchor the ground spike / centre hole very firmly it will gradually waggle loose.
You could try it, but probably better to set it in concrete from the outset. Dig a hole maybe 400mm in diameter and 400mm deep. You can fill to below the surface of the ground, enabling other materials to be put over the concret pad below it.

[kat83]

thank you buildersmate, would i just get a bag of concrete from B&Q?

[buildersmate]

That's the most convenient way for just a small volume. Probably needs two/three of those 25kg bags though.