Water meter - feed shows incorrect data

Hi All
I’m trying to implement water meter consumption and get daily feed totals.
I get pulse from water meter after every 10l consumption and send with esp8266 every time single HTTP request to my emoncms server.

Time:552345998, send:10 litres
Time:552346363, send:10 litres

Time:552396399, send:10 litres

For example, today was sent 26*10 = 260 litres, but emoncms daily feed shows 280 litres.
Same issue with a Accumulator feed.
What’s wrong with my setup? Thanks.