My Acurite rain gauge appears to be measuring the rain accurately. However, when it records to the chart, strange things happen. For example, this week it rained two days - Sat .07in and Sun .03in. The chart shows Sat correctly (.07in) but then shows Sun ALSO with the Sat measurement (.07in) ... and Mon (when it didn't rain) shows the Sun total (.03in). A week total of .17 when it should only be .10. It almost seems like any day with rain is carried over to the next day. Have I failed to read the instructions (as usual) or is this just not working correctly. Thanks for your help.