As I pointed out his solution, even if it did function, it would be
inadequate at best. Because you do not know, my tools and their use are my
hobby and my hobby is expensive and yes, I do consider my time as a cost
factor. There are only 1100 hours a year for the working individual
available for activities outside of the work place and what time you spend
on one thing restricts your available time for other things. How you expend
those available hours is of course personal choice, but to consider them
without cost is foolishness. To repeat myself again, your solution is
neither cheap nor simple.
Steve

"Sjouke Burry" wrote in message
...
Steve Lusardi wrote:
$10 solution? I guess you don't build many things. How much is your time
worth? How much effort do you think it will take you to source the
apprpriate parts, even if you could? If you couldn't, do you have the
tools to make them? Material cost? Then you have the performance,
accuracy, liniarity, data display and verification issues to deal with. I
have both the knowledge, the test equipment and the machine shop to do
this and I know that for me to make one would cost me several kilobucks
in time and materials. Perhaps you want to share what your smoking.
Steve
I would make the mecanical parts, and
get a counter/photo transistor from www.conrad.com

I dont have to pay myself, you apparently have never
done any hobby work, according to your rules it would
be impossible to make something on the cheap.
The OP wanted something simple/cheap to have some indication
of water consumption, and I dont see where you would
spend all that money on, unless you are trying to
solve a different problem.