this might sound like i,m answering my own question,but it seems that all my domestic poles that i use only seem to last about 4-5 months before they start to wear on the shafts and not clamping tight,causing the brush head to move about.The poles i use at the moment are 18ft extendable, come from cleaningspot, and cost about £80,it,s always the first part of the pole that wears first,so at the moment i have 2 poles in the garage that can,t be interchanged.Am i answering my own question buy buying a pole at that price,if so what would be the best pole for normal everyday use,this is the problem that when you start wfp,you get you first bit of kit and seem to stick with it,not sure about what is realy best or better....many thanks for your time....cottonbud10