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what will happen at the water meter when air is trapped after the city repaired

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nana

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Jan 10, 2015, 12:44:05 AM1/10/15
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What will happen at the water meter reading when the air trapped during
the city repairing a water main break?

The municipal water line broke near my house, after the repairs where made
and the water turned back on, my pipes rattled and bumped with dirty water
and air escaping for a few minutes, then the water cleared and the noise
stopped. However, when I got my water bill, the reading was for what I
normally use in 7months.

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Jerr...@spamblocked.com

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Jan 10, 2015, 1:47:12 AM1/10/15
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I guess you're saying that your reading for ONE month was the same as
what you normally use in 7 months. I doubt that a little air in the
pipes would cause that. I suggest calling your water utility and
explain the problemm. Maybe some crud caused the meter to malfunction.
There is nothing anyone else can do. Ask the company to replace your
meter or provide another solution. They should understand, I'm sure
that when water mains break, things like this happen....

You may even have had water flowing OUT of your home during the break
and/or repair. (from water in your water heater, etc). Does that make
the meter spin in forward or reverse???? (I dont know)....

You should also remove the aerators on your faucets and clean them, and
also drain your water heater to flush out the dirt, as well as flush out
any ice maker lines if you have one, and toss any old ice cubes.


Message has been deleted

trader_4

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Jan 10, 2015, 6:38:24 AM1/10/15
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On Saturday, January 10, 2015 at 1:59:05 AM UTC-5, gfre...@aol.com wrote:
> There should be a back flow preventer to keep your water from getting
> back into the system. It is usually just a globe valve buried near the
> connection to the street.
>
> The only I can think of is maybe the air going through could spin up
> the paddle wheel on the meter faster than water would but I still
> would be surprised if it was a very big number.
> I have a water meter in the garage. If I get a minute I will see what
> blowing compressed air through it does.

That's what I was thinking too. A meter expecting water flow might
spin a lot faster with air. But seems it would have to be a lot of
air to get 7x, but then who knows. In any case, given that they were
screwing around with it and that it's 7x, I would think the water company
would take care of it, as long as it hasn't appeared on a previous bill.

Ed Pawlowski

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Jan 10, 2015, 9:40:49 AM1/10/15
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On 1/10/2015 6:38 AM, trader_4 wrote:

>
> That's what I was thinking too. A meter expecting water flow might
> spin a lot faster with air. But seems it would have to be a lot of
> air to get 7x, but then who knows. In any case, given that they were
> screwing around with it and that it's 7x, I would think the water company
> would take care of it, as long as it hasn't appeared on a previous bill.
>

Is the meter in the house? If it is an a pit outside, I'd also check to
see if there is a leak on the home side of the meter. I can just see
the OP coming out of the house and into a large sinkhole.

Tony Hwang

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Jan 10, 2015, 10:55:02 AM1/10/15
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Hi,
You got water back. All is OK. How long did it take for the re;air?Did
you expect smaller amount on the bill? How do you pay for water
consumption. I pay by the cubic meter(metric ton) My household uses
~13 cubic meter permonth on average.

Tony Hwang

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Jan 10, 2015, 11:00:33 AM1/10/15
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Hi,
I'd ask neighbors first.
Message has been deleted

Jerr...@spamblocked.com

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Jan 10, 2015, 3:03:50 PM1/10/15
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On Sat, 10 Jan 2015 01:58:56 -0500, gfre...@aol.com wrote:

>>You should also remove the aerators on your faucets and clean them, and
>>also drain your water heater to flush out the dirt, as well as flush out
>>any ice maker lines if you have one, and toss any old ice cubes.
>>
>
>There should be a back flow preventer to keep your water from getting
>back into the system. It is usually just a globe valve buried near the
>connection to the street.

I know all houses have a buried shutoff valve, which needs a long
special tool to shut off, via a capped tube over the valve.
But a globe valve is not a back flow preventer. However, there SHOULD
be something to prevent back flow, but I have seen water lines installed
and never seen anything other than the connecter on the main, the valve
in the lawn, and the entrance of that pipe into the house, which goes
right to the meter. Of course this could depend on local codes and
requirements......

>
>The only I can think of is maybe the air going through could spin up
>the paddle wheel on the meter faster than water would but I still
>would be surprised if it was a very big number.
>I have a water meter in the garage. If I get a minute I will see what
>blowing compressed air through it does.

I'd be interested to find out the results of this experiment!

nana

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Jan 10, 2015, 3:44:05 PM1/10/15
to
replying to gfretwell , nana wrote:
> gfretwell wrote:
>
> There should be a back flow preventer to keep your water from getting
> back into the system. It is usually just a globe valve buried near the
> connection to the street.
> The only I can think of is maybe the air going through could spin up
> the paddle wheel on the meter faster than water would but I still
> would be surprised if it was a very big number.
> I have a water meter in the garage. If I get a minute I will see what
> blowing compressed air through it does.



Thanks in advance - I am very interested in what you find out by blowing
in the compressed air.

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sammys...@gmail.com

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Jul 8, 2020, 1:39:27 AM7/8/20
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I know this was a long time ago, but I am having this exact problem now and am disputing with the water company over a bill that is triple my usual bill.

Lightning struck their pump, so they had to switch over to the "old well" while waiting for the replacement pump, which, when it arrived, they installed it and switched is back over. There was clearly air in the lines for a couple days, as the water was cloudy.

We have no leaks (this is a difference of over 12000 gallons!) and nothing was left on. Our usage on the current cycle so far is right back to normal, indicating that something last cycle was an anomaly. Well the ONLY thing that changed was on their end.

Problem is that my neighbor's bill was essentially the same as their usual bill, but there is no explanation other than a large amount of air forced through my pipes that spun up my meter in either a large burst.

If anyone sees this and has an explanation, please post it here or send to my email at sammys...@gmail.com

Jen

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Jan 8, 2022, 1:15:12 AM1/8/22
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Hi was wondering if you were able to prove it. We had a main water line break up the road in our neighborhood now my water bill is $900. There’s no way we used 38K gallons of water in a month. And we had two plumbers come out and say we had no leak.

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For full context, visit https://www.homeownershub.com/maintenance/what-will-happen-at-the-water-meter-when-air-is-trapped-afte-820308-.htm

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