Here's my ground floor pole. Actually, it's more of a bungalow pole, but I will use it if my regular pole won't fit and I can't reach to do it the old fashioned way.
It's a Harris pole! 1.3 m to 2.4 m. As it's for low level work, I haven't even bothered with a gooseneck.
Photo 1 - the complete pole.
Photo 2 - a single over-the-top jet
Photo 3 - how the jet is attached
Photo 4 - the tap
As you can see, it's all held together with cable ties and I'm using an Addis brush!
That's OK.
It's a work in progress and I expect it to evolve as I learn more about the way it behaves and I try different brushes and maybe jets.
It was made because i work on quite a few properties where windows are inaccessible to long poles because of walls or other features, but are accessible to a shorter pole. So far it has been fine. And it cost very little to put together.
I can see improvements, notably to the jetting. Maybe others can suggest improvements as well.