Monday, 23 January 2017
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I've got one mainline loop, supplied by two meters on opposite sides. I read through the multiple meters/multiple POCs docs. My take-away is: doing the multiple meter routine gives you main line sized for just one meter at a time, and does not account for the total combined flow, and; to connect multiple POCs, you have to connect them directly.

I tried to game the system by treating the water meters as POCs, but since I also show backflow devices, etc., between the POCs and the main line loop, and since they're on opposite sides anyway, I can't form that "smart block."

So: how can I work around this? Show two meters on opposite sides and size the system based on the total combined flow?

Thanks!
Our mainline sizing does not yet have the ability to automatically account for multiple water sources running at the same time.
However you can still benefit from the calculations that are possible.
You should start with two Custom POC's, with one at each side. Then when sizing the mainline for either one, you would enter a Maximum Flow, and finally use the Select Valves button. I don't think there's a need to painstakingly select all valves on that side of the loop, but just enough key ones to reach your max flow, and replicate your critical station.
You could then use the resultant critical analyses to see what sort of pressure loss you are looking at.
The main reason for using the Custom POC at first, is because it would have double the output of a single Meter, which will then get halved through the loop. It will then also be quicker to edit the available flow as you try sizing for different combinations of valves.
Finally, you could replace the POC's with your Meters, and now generate the pressure loss through your Backflow and other equipment (again, using the Select Valves button, but now just for the nearest valves).

--J
Okay, thanks, I'll give it a try!
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