Plumbing – Why would I have little to no water pressure after reopening the main water valve

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I had turned off the main in my basement today so I could replace a couple of leaky valves in my basement bathroom and under my upstairs kitchen sink. turned on all the valves and opened up the main. I can hear water moving through the pipes, but Im not getting any pressure anywhere in my house. its a little more then a trickle at best. Ive had everything opened for over an hour now and its not getting any better. I tapped on the valve at the main, tapped pipes as well. nothing seems to be improving. Im on city water so the pressure to my house is good. the only valves that arent open again are under my sink as I cannot connect that until tomorrow. any ideas as to what it could be? I can hear water running through the pipe at the main. Any help would be greatly appreciated.

Best Answer

I would not count on the main valve - it could have broke. I had similar situation last year, but in my case it was that i couldn't close the main valve. If every output - even the ones that You didn't touch - gives same response (little or no pressure), it is highly probable that main valve broke down.

I would suggest calling city plumbers (as this is main valve) to check and replace it.