I have a Mira shower the water power is poor any ideas what i can do? One plumber said it would be the valve but didn't even look at it. It is about 10 years old and is sunk into the wall.
hot and cold is slow. Have tried to open out valves on attic tank more and valve on pipe in downstairs cupboard. There is a small pump downstairs in the cupboard which i think relates to the shower.
