Anyone use water timer

All right, as an erstwhile and unsuccessful inventor my beeper wasn't such a pop idea

http://able2know.org/topic/284701-1

But how about this one: There must be millions of battery water timers in use throught the half that freezes

https://nsidc.org/cryosphere/frozenground/whereis_fg.html

....but where shrubbery still needs watering, hundreds or maybe tens of thousands ruined each year (at a cost typically $50 ea) ' cause its owner forgot to check the forecast night before. So, Letter to the Ed. of our excellent local press, Victorville Ca Daily Press:

Open Letter to the Watering Industry: Please, please tell me it's been done, that such a thing is readily available today:

While I realize it’s not the sort of thing one usually sees here in LtE, owing to brutal new drought watering regulations I felt I ought to propose a new sort of water timer

Now that it’s necessary to irrigate at night, many of us who formerly watered some stations by hand or used a manual timer are rushing out to buy a battery unit. However the occasional freeze that we experience places a new restriction on the use of a timer: Day before the expected freeze of course we have to disconnect it from the spigot

But my new timer would require no action whatever, sensing (as well as the time) the temperature, briefly opening the valve every time it senses a imminent freeze. When its temp has reached a reasonable value (that of the incoming water) it of course shuts off. The time required for each flow minuscule, and so I’d plead with Authority not to prematurely forbid it as a wasting of our precious resource but instead as an encouragement to water at night (I had approached Orbit, who make an otherwise excellent series of such timers but either they're still thinking about it, or mebbe my idea just won't work)

Guys hear me: Go to it, you’ll sell tens of millions of ‘em!

Dale Hileman
Apple Valley

So, you (other) inventive fellas: Whaddya see wrong wit my idea