No cold water if hot water is turned on first.

Hi, Have you checked the tap washers in both taps? What is the hot water pressure like in your other hot taps? What is the cold water pressure like in your shower? There may be a water saving flow restricter in the showerhead which limits the flow of water. What type of hot water system do you have, mains pressure storage tank, gravity fed storage tank, instantaneous etc?

Hi jayeff. Thank you for your reply.

This is a recent problem. We've never had it before. The whole bathroom was new as of almost two years ago. Always had good pressure from both taps in the shower.

I will check the washers in the taps. We have a mains pressure water tank. But hot water pressure is fine in the kitchen, bathroom sink and laundry. Same goes for the cold. The cold water pressure in the shower is fine also.

My partner pulled the shower head off tonight and says there's no problem there.

:)

Hi, Might be a bit wet and be careful, but when you go to check the hot water tap washer, after you have removed the tap, turn the hot water tank tap back on, you probably also have to turn on the house mains as well to get the pressure so don't remove the cold water tap before your try this. Don't stand in the shower in front of the tap fitting With the tap removed, the water should gush out of the tap fitting. BE CAREFUL IT WILL BE HOT. If there is a blockage of any sort in the pipe hopefully it may be cleared especially with the washer out of the way. Just a thought.

Thank you :) We'll give it a go

Hi Jayeff,

So the problem still exists... Seems to be deeper into the pipes. We took the taps off and took everything out, and the pressure is still very dismal :(