Why is there no water coming from tap?

I got to my client’s house this afternoon, and when I turned on the kitchen tap to do some dishes, nothing came out. There is nothing coming from her kitchen sink or bathtub faucet, either. Another person in the house told me that it was working earlier today.

I know I went down to pay her bill (she’s an invalid) on time, same as always. A phone call to the water company’s emergency line confirmed the following:

a) there is no construction anywhere near her house that might have interrupted service, and

b) the guys who turn service off for non-payment aren’t even working today, and there’s no way they could have done that.

We went out to the street and looked at the main valve – water is turned on to the house, and also the neighbors say they have water.

My client lives in an upstairs unit. This is in California, where the temperature is currently 55 degrees. Although it has been getting close to freezing at night, the water was working earlier today, so the pipes can’t be frozen.

What on earth else could it be? I am stumped. How could the water pipe coming IN suddenly get blocked? Doesn’t seem very likely. And if it were broken, wouldn’t there be a massive leak that the downstairs neighbors would surely notice?

Is there a shut off somewhere in the house?

No. There might be a shut-off valve for the building, but it would be in the sub-basement, that no one has access to.

Is there water anywhere in the building?
OUtside?

Yes, there are two downstairs apartments that have water. The building is a large corner house that was divided up into three units.

No hose bibs outside at all.

Water department has nobody to even dispatch a crew today, being a day when nearly everybody is off work. I am completely mystified; not sure how I’m even going to feed her without water. I guess I’ll have to go get something ready-made.

Check the shit off valve, again.

Give the anti-flow back valve a hit ? it might be stuck.

There might be a stopcock on the pipe outside where a child might have moved it ?

That’s one valve I always want off.

Is there any water at all in the upstairs unit. Any sink, tub, shower, toilets?

Does each unit get it’s own water bill or is there only one to the building?

No, that isn’t very likely … but once you’ve eliminated all the probable causes … you’ll have to look at improbable causes …

Is there a tub spigot? … try removing the aerators in the sink faucets and see if water runs then … does the toilet tank fill?

Sounds to me like someone turned off the shut-off valve for that apartment.

-A workman fixing something, then forgot to turn it back on. Anyone have any work done?

-A kid wondering “What is this valve for?”

-Someone being hateful.

Call the landlord. This should be considered an emergency.

If there’s an accessible water meter and it’s showing usage, you might have a leak inside a wall somewhere, or even in the ground (if your meter is under a cover in the ground, where the water company’s pipe connects up to the one that runs to your house). In that case, shutting off the water might prevent further damage, and limit any huge bills.

See how close to the sub-basement (where the shUt-off is located) - if you can get to it, somebody else may have been playing with valves.

What I don’t understand: if this was built as a single family residence, why would it have a “sub-basement”?
The term suggests that there are TWO basements, one below the other.
That is VERY uncommon in SFD construction.
If someone went to all that trouble, they may well have added individual shut-offs for each of the 3 units.

Otherwise: depending on age of house, it may be that one of the downstairs units contained the original kitchen (which had water when built) and the upstairs had the original Bath (also with water).

Who knows how the plumbing was butchered during conversion to apartments.
There may have been an old line downstream from an ancient valve - and that line is now the source.

First: Call landlord. Repeat until fixed.

While waiting for landlord, ask around if anyone has seen an old valve - and did they do anything with it?

I think you may have a winner here. When I remodeled my kitchen I added valves to the kitchen to the existing plumbing. Then I ran the new lines to the kitchen. When everything was done I turned on the valves.

There may be some valves in one of the other units that were added in the remodeling.

Call the landlord.

You don’t mention where you are. Is it cold enough that a pipe may have frozen?

From the OP:

hands Tastes of Chocolate some coffee

Yeah, that and the poison sockets.

Did you ever figure this out? What was it?