Cold water tap from bath mixer is barely a dribble.
Rarely use this bath as family prefer separate shower,
Cold water tap in sink and toilet work fine.
Plumber came today - checked tap, discovered no water actually coming through pipe.
He also lifted toilet cistern lid and said toilet slow to fill. Whilst filling
If cold tap turned toilet stopped filling.
He is coming back to investigate further.
All other taps no problem.
We have had extensive heating problems over years power flushing new boiler etc.
Also had a new ball cock in loft several years ago.
Hence lots if people in loft by cold water tank.
Again hard to pin point when cold tap stopped working as bath hardly used.
Any suggestions as to what could be problem.