New water meter - back to zero | Home Assistant | Page 1

languid snow Dec 5, 2025, 11:17 AM

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I just got a new water meter, so now my total volume is back to zero, with a resulting -1200 m³ consuption in the Energy dashboard.
I have an MQTT device reading the meter over M-bus, so it's the same sensor device.
Where do I fix this?

languid snow Dec 5, 2025, 1:09 PM

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trim bloom Dec 5, 2025, 1:36 PM

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developer-tools/statistics

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Click the adjust button for the stat. select outliers, should be one at -1200, change it to 0.

languid snow Dec 5, 2025, 9:45 PM

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Outlier gone. Drop still there.

trim bloom Dec 5, 2025, 9:46 PM

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The state will still reset to 0, but it won't be counted as negative accumulation in the water consumption graph.

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It just updates the sum column of the statistics table.

languid snow Dec 5, 2025, 9:47 PM

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Ah there we go. It looked like it was still in the consumption graph, but that was just browser cache as usual.
Thanks a lot!

#New water meter - back to zero