Bow not loosening?!
My bow is not loosening past a certain point. It gets just below the tautness that you'd play on, then the hair refuses to loosen any more, although I am able to unwind the screw indefinitely.
We do have very hot, humid weather at the moment.
Does anyone know what might be going on & if/how I could fix it? Would a rehair fix the problem?
It's unlikely this has anything to do with the quality of the bow.
Warm humid weather would tend to make the hair longer - so to me your problem seems strange.
It sounds to me like you are using it in an environment that has a lower humidity than it was in when it was last rehaired. Yes, a rehair will fix that. I've heard of the practice of having a rehair at the beginning of winter and summer to counter that. If you play a lot on that bow it probably needs a rehair twice a year anyway.
Thank you both for your answers.
I'm quite sure your rehairer will understand if you speak to him/her.
Are you air conditioning in this hot, humid weather you're experiencing. That can cause the indoor RH to drop to a very low point. If you are in an air conditioned space, have you tried taking the bow outside? If that's the problem the hair will react by lengthening very quickly. And if your indoor air is very dry you should take steps to humidify your instrument too, to prevent cracking. That's a lot of "ifs." If my hypothesis sounds possible, start by taking the bow outside.
I experienced this problem after my one and only rehair. I called my luthier as soon as I discovered it. She commented that the day I picked up the bow had been quite warm (and dry), and asked if I had had it in the car for awhile after getting it. I told her it was only for the 10 minute drive home. When I told her that I was able to loosen it to the point where the bow was cambered, she said to just play on it and it would loosen up. It did, but it took more than a few days. I also noted the problem Michael mentioned about the frog being stuck--I forgot about it so I'm glad he did.