Tub hot water knob sometimes nothing comes out
My daughter is hoping to go to contract on an apartment, we noticed that sometimes the hot water works fine, but more often faucet just spins and nothing comes out. The owners will not negotiate, and since DD wants the apartment she will deal with it when she is the owner. At worse I told her she will have to break tiles in tub, have it fixed and put new tiles up..,she's fine with that. I'm just wondering what you think is wrong from my description. Thanks in advance for your help.