27 Sep '14, 2pm

Automated Watering System Uses Neat DIY Water Valve

I think controlling water from the main supply with a valve like is a good way to do it for outdoor watering, but not so good indoors. Insurance will pay for damage if a valve in a dishwasher or refrigerator ice-maker malfunctions, but doubtfully for a home-built watering system! I built a house-plant watering system last year, and what I did was use a pump to pump water from a 5-gallon bucket on the floor into a small elevated reservoir with a liquid level sensor, and then released water from there to different plants with gravity-feed solenoid valves. This gave both a way of metering the water, and a level of safety: the total possible water release from a software bug was the contents of the bucket, and from a valve malfunction or tubing leak only a few cups/deciliters.

Full article: http://hackaday.com/2014/09/27/automated-watering-system-...

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