I already have a honeywell water detector. I tested it and it seems to work very well. I could take it's cable and connect it to my controler instead, but the cable is not long enough. So I am looking for another longer water detection cable, and there are choices that I don't know how to evaluate. There is one for 2,50$/m, is it as reliable as the one that sells for 10$/m? So if anyone has some experience with these cables, I would like to hear about it.
I know this doesn't answer the question, but on evil at there is a water detection circuit that alarms your cell phone if it detects water. I have been looking into that and a few smart outlets so I can shut each piece down remotely.
One qualm though is if there is already a siphon and you are not there to manually break the siphon shutting off the pump does zero good. Siphon breaks drilled high enough would help but not eliminate water damage.
I am not sure what you mean, or if it relates with the way my system works. I don't have a sump or anything, there is no syphon that can happen. Basically, I have an overflow which is connected directly to the house's drain. And a hose connected to the house's water plumbing which brings new water to the aquarium (after running through carbon filter), controled by a valve which is activated by a timer. So when the timer goes on, new water comes in, which makes excess water in the overflow go into the drain.
The problem I got some weeks ago, which I want to prevent in the future, is that a hose broke and water spilled all over the floor when water change happened. So I want to add a water detector cable on the floor, connected to a controler which will shut off the whole water change system when there is water.