Rotary clothes drier concrete base Q

I’m probably overthinking this but I’ll ask anyway!

we have a rotary clothes drier that’s until now been put into the (long) ground spike that I hammered into the lawn years ago – but it’s now a little wobbly.

So I’ve used the SDS drill to break up an existing concrete base that was put in for a previous drier and I’m wondering whether I need the “special” concrete insert that they sell – or can I just put the drier in the hole, fill it with postcrete, add water and hold the drier straight for 10 mins while it goes off.

Where’s the flaw in this plan and should I get the proper insert?

Does the pole need to spin once inserted*? If so that’s probably why an insert is normally used. Probably any piece of pipe the right size would do.

*This is normal but not necessary. We had one that didn’t spin but one side of the ‘umbrella’ was screwed to the yard wall when we lived in a terrace. Dryer worked fine. North East facing shaded yard less so.

Insert is so it can be removed for what ever reason in future.

Given the winds managled one of mine and then my mate with an axe mangled another…..been quite glad I’ve not just concreted the pole in

Why not just concrete in your existing spike. ?

I just concreted in the grass spike that came with the dryer. The only downside is sometimes you drop the washing line in and it squirts dirty water out of the hole… Never got the clean washing but it’s got me a few times!

If that bothered you.,…find a multi fit bath plug. Bosh.

The problem with reusing a grass spike is probably removing it without digging up the lawn. We put the drier away one winter and had to borrow a metal detector to find the spot again in the spring. Pretty much invisible hole after 3 or 4 months of rain, grass and mud.

Concreting in a grass spike should work though if you have a spare.

How small a spike do you have if it’s tipped over? If you concrete it in then make sure it’s the biggest diameter you can get with shims for thinner posts, you don’t want to have to replace a line only to find the hole is too small!