Not forgetting to add lots more hose I'd imagine 
With the use of slimline JG in line connectors you can alter the length of the hose very quickly & easily.

I don't know if this is what Gardiners do or not but I used to do this with an old carbon facelift. It was 44ft but I used it as a 24ft pole most of the time & so just split the hose this way.
