So what he said, get a more supple hose for your Dyson.
The one cleaning you really should be doing, but no one does, is at least once a year disconnect everything and clean all the contacts. Clean the RCA, power plugs, tube pins, everything you can get your hands on. Use a clean cotton cloth with alcohol at the very least. Even this will make an improvement. Slightly better, use one of the many contact cleaner/enhancer products. They are all pretty much the same. Except for TC or maybe the new version, these are much more than contact enhancers and do not need to be redone over time like the other stuff.
The one cleaning you really should be doing, but no one does, is at least once a year disconnect everything and clean all the contacts. Clean the RCA, power plugs, tube pins, everything you can get your hands on. Use a clean cotton cloth with alcohol at the very least. Even this will make an improvement. Slightly better, use one of the many contact cleaner/enhancer products. They are all pretty much the same. Except for TC or maybe the new version, these are much more than contact enhancers and do not need to be redone over time like the other stuff.