My laundry room is on the 2nd floor of the house. I want to safeguard against hose burst flooding. (Beyond just steel braided hoses)
I am not satisfied with the "Flood Stop" which is all over Google as that is a "normally open" valve. In the event of power supply failure it would be useless.
My plan follows:
- Get two "normally closed" solenoid valves, one for hot, one for cold.
- Adapt the solenoid valve inlet to the hose thread on the gate valve.
- Use steel braided hoses from the valve output.
- Replace the receptacle in the laundry closet with a GFCI version to power the solenoids.
- Wire a 120v relay to the light switch. This relay will control the solenoids and the switch will be electrically isolated from the solenoids.
With this in place, the washer water supply hoses have pressure only if the laundry room light is on.
So far I've received only puzzled and confused looks from the local plumbing shops, they have been very little help. (Uh, what's so hard to understand?) They've got nothing out-of-the-box that fits this application. I'm curious to know ballpark fill rates for washing machines in gallons per minute in order to gauge what size valves to buy.
If a solenoid valve fails, I *assume* it fails in its "normal" position. Can you confirm or deny this? Does the solenoid valve itself pose a hazard of leaking in the event of its failure, such as leaking out through the top or something?