<div dir="ltr">2 months ago I started a discussion about this and various people suggested some possible halachic
justifications allowing the use of them. In today's Yated Neeman there was not 1 not 2 but 3
separate "Kol Koreh's" against using ANY kind of electronic water meter.
They write in the name of various gedolim (see below) against using
heterim based on safek pesik reisha or grama as they are דימויים
מפופקפקים מאד. The only electronic water meter that can be used is one
where the electronic component can be completely turned off for Shabbos
and it will mechanically measure the water on Shabbos.
<br><br>This approach may work in Israel where the Charedim are a big enough
population for the water carriers to accommodate them. However, this will
not work in chu"l even in a place like NYC, kal v'achomer in a city
with a small religious population. The poskim will need to deal with the
issues of electronics on Shabbos and come up with a position that
people can deal with or we will need to become Amish.<br><br>Here is a link to the Kol Koreh's:<br><a href="http://4.bp.blogspot.com/-zE7Naj8WARk/UE8VGqtYcDI/AAAAAAAAAZw/tR51Yc9TBvw/s1600/water-meter.jpg">http://4.bp.blogspot.com/-zE7Naj8WARk/UE8VGqtYcDI/AAAAAAAAAZw/tR51Yc9TBvw/s1600/water-meter.jpg</a><br>
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