I've had my poool about 1.5 years now and theres something that's been bugging me that maybe someone else has solved. When I go to brush the pool I have a hard time keeping it extended. However much I crank down the sleeve to tighten the poll, it just doesn't seem to grab well enough. My thoughts on a solution are to put a very rough grit on my belt sander and roughen up the pole, but just curious as to whether or not someone has a different solution?