This one has me stumped...
Our house is only 3 years old, and so far we've not any plumbing problems.
Today I noticed that the shower in our spare washroom (very rarely used) was not working properly. When you turn on the cold water its OK, but as you turn the knob to the hot the water pressure starts decreasing. When the knob is turned to 'full hot' there is no water coming from the faucet. So it looks like only the water from the cold pipe is working. I tested the washroom sink, and the hot water seems to be flowing fine. What could be causing this?
Thank you in advance..