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Which concrete pump?
This is a line pump. You can haul the end around, takes 2 or 3 men to move it, or you can remove sections to make it shorter as you progress.
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This is a boom pump. It does most of the work for you.
This web page has two videos about line pumps. What they DON'T show, is moving the pipes around - which is extraordinarily heavy work. 3 guys usually just to drag the end around.
Boom pumps are measured from the ground to the tip of the boom when it is straight up in the air. When it articulates to the side it loses about 4m. plus it has to be parked with its outriggers a safe distance from an excavation.
Common sizes would be 16m, 20m, 24m, 28m, 32m, 36m, 42m, 52m, 62m and Camfaud have a 72m.
A line pump usually comes with a mix of steel pipes, rubber pipes and bends to pump 30m. They will bring more if you order more.
Never use a line pump unless you have no choice. Especially for walls.
To fill walls properly, you need the boom overhead and you need to lower the rubber pipe a short way between your layers of wall steel reinforcement. That is necessary to shoot the concrete between the steel to the bottom rather than pouring against the steel which will spray concrete in every direction and you will only get stones at the bottom.
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