Hope you can help. My shower hose is seized due to limescale on my mixer taps. I live in rented accomadation so I'm not feeling too confident about applying too much pressure to unscrew the nut, the landlord said he's happy for me to deal with it but do you think I should get a plumber around to get the whole mixer tap replaced. Am I likely to get this shower hose unscrewed with some careful but stronger pressure applied to the wrench? Or is it most likely to be stuck fast??