Solenoid valve for the toilet hookup?
Dear Martin, et al:
Having just changed the flapper valve in a toilet after my water bill was high due to the unappreciated running of the commode, I am wondering why we don’t have a better system for toilets? Specifically, why not a valve such as one finds in a lawn irrigation system?
For $15-18, one can get a lawn sprinkler system valve, which of course, is in the default: off; no flow setting. Add a 24 volt solenoid, it turns on, allowing flow. This, with the appropriate 24 volt AC adapter, could be wired to the light switch of the bathroom. When the light is on, then there’s water and the toilet fills. When it’s off, the toilet would not run and run and run thereby wasting a whole lot of water.
This does not sound cost effective until one considers the sensor switches that are installed to run light bulbs. My LED 60-watt-equivalent bulb says it uses $1.08 per year in electricity. Yet, there are plenty of $59.99 sensor switches installed to run that bulb…I would contend the break even cost of this common electrical convenience is much worse than preventing a toilet that runs and runs (or for that matter, a broken washing machine hose).
What is right or wrong with this idea?
Thanks, Brian in Austin
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