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Author:
tmhudson (WV)
I have two 1 inch water meters connected in parallel approxiamtely 18 inches apart, the outputs are tied together to form a 2 inch water line. There are no check valves in the plumbing. Can the two meters interfere with each other? Can water flow in reverse through one meter back into the city supply line?
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Author:
Wheelchair (IL)
Is this a residential or commerical application?
Best Wishes
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Author:
packy (MA)
water can flow backwards thru a water meter.
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Author:
hj (AZ)
Since the inlet pressures HAVE to be the same because they are connected together, there is NO pressure imbalance to cause water to backflow, but if it did, it would just "subtract" the flow from the meter reading. If the two meters were connected to the system at different points, then they would need check valves because they could have pressure differences.
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Author:
packy (MA)
meters around here will never subtract because of backwards flow.
they just make a clicking noise and the use indicator wiggles at every click.
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Author:
sum (FL)
What is the application to have two meters merge into one line?
I have seen two meters splitting like one for consumption inside house and one for irrigation.
When will you have two water sources that need to be merged? If you have a well I can see a setup where you may shutoff the city and switch on well but one wouldn't need to meter the well consumption.
Just curious.
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Author:
packy (MA)
he has a 2" water main and is feeding it with two 1" services and two 1" meters.
around here a 1 inch meter costs little more than 500 dollars. times two the cost is slightly more than 1000.
i would guess a 2 inch meter would cost upwards of 2000 dollars..
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Author:
bernabeu (SC)
The area of a circle varies PROPORTIONATLY with the square of the diameter:
2 x 2 = 4
1 x 1 = 1
4 / 1 = 4
he would need 4 - 1" meters to feed a 2" main
not allowing for or counting any friction losses
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
hj (AZ)
They do it to supply a greater volume of water without purchasing a single large meter which has a higher monthly fee than two smaller ones.
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Author:
hj (AZ)
A 2" line has ALWAYS required four 1" ones to equal the area, but he probably does NOT need a full 2" of water so half is good enough. We have apartment complexes which have multiple 2" meters feeding into a 4" main. If they do not need the entire volume, they can have the city turn off one or even two meters.
Edited 1 times.
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Author:
bernabeu (SC)
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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