In article .com,
wrote:

Hi,

I recently turned off the main water shut off valve outside the house
to replaced a bad toilet water valve. The main water shut off valve
wouldn't turn off completely but water pressure was reduced quite a
bit.

I guess I have a bad main shut off valve? How do I replace the main
shut off valve (globe valve) or is this a job for the professionals?


I have a similar problem - except I cannot shut off the water at my
shutoff (I have to use a meter key on the city side). Two different
plumbers advised me that trying to replace the valve might lead to
wholesale pipe replacement because my pipe is galvanized and very old.
They both advised me not to attempt to fix the shutoff unless I was
willing to allow the job to escalate considerably (re piping).

So you might want to consider the age, type of pipe and condition before
you get in over your head.

If the pipe is contemporary copper etc. it would be much easier to fix.

Roland