Shower squeal is deafning!
We have a shower upstairs which, when the water begins to get hot, squeals unbelievably loudly. It is earsplitting and it lasts for up to three minutes. Adjusting the temp a little cooler or warmer doesn't do much except scald or freeze the showerer. This is a 10 year old home and water pressure is fine. What can we do? Rip open the wall? Replacing the shower head hasn't made any difference. The children hate to use this shower. It's do da#$ loud!