Quote:
Originally Posted by EdFNJ
Good suggestion, but problem is, those rain sensors won't know that will always rain an hour **AFTER** you water.  You need a "smart sprinkler system" for that. They actually work pretty well not watering both before predicted and after it actually rains. |
Correct, that's why it's always best to install a smart sprinkler timer like the Rachio which is connected to the weather via the internet.
But a lot of people don't want to do this upgrade so for them they are wasting even more water because their rain sensor has dried out and is not working. What most don't realize is you can get a 6 zone Rachio on e-bay for about $125 and you should be able to recoup to cost in a couple of months by not watering when it's not needed.