Reliable, but only for a few weeks. After that, you're on your own...
I loved the simplicity of this bilge pump switch and had hopes that in my application where it simply turns a well pump in fresh water off and on every 25 minutes, that it would last reasonably well.
It lasted barely six weeks. In that time, to begin with, it was as regular as clockwork, you could time it to the minute when it turned the pump on and off.
After four weeks it got stuck in the 'on' position. Fortunately I have an LED marine light that lights up when the well is pumping, so I could see that it was running longer than the usual 2.5 minutes. A day or two later the light remained off. I pulled the well equipment and glued a fishing float to the top of the switch to add a little weight and buoyancy.
It worked a treat, back to working as regular as a metronome. Then it quit again after a few days. By my calculations it actuated on and off a little less than 2500 times. That simply isn't good enough. The crappy one I had fitted previously managed to run well twice that time (it also needed the fishing float glued to it for it to be reliable).
If I had an expensive boat in the water and was relying on this switch to keep it pumped out and dry, I'd be seriously worried. It's not worth two knobs of doggie doo doo. I guess I'll try an Attwood one next.
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