My main waterline (1st valve coming into house) valve is not opened all the way. It does not move easily. It is only open about 1/4 of the way until the handle is in line with the pipes. I don't know if this was set by the plumbers when the home was built or by the previous owners. I have tried to move the handle with easy force but won't move. The handle must be tightent down. Afraid to loosen the handle and turn it up. Is their such a thing as too much water pressure coming into the house too damage the plumbing?
This is a townhouse and non of the neighbors valve are set in this manner.