I still haven't found a long stem float switch, but I've had one of these for a while, and if I silicone it in well it should do the trick. http://www.amazon.com/gp/product/B0076U ... UTF8&psc=1

nice. I've been wanting to put a reservoir signal in my top off water jug forever, but couldn't figure out how to get a long enough float towards the bottom of the reservoir. The silicone seal on the bottom makes me a bit nervous, but a tight seal with a layer of silicone should hold.

-Jon

nice. I've been wanting to put a reservoir signal in my top off water jug forever, but couldn't figure out how to get a long enough float towards the bottom of the reservoir. The silicone seal on the bottom makes me a bit nervous, but a tight seal with a layer of silicone should hold.

-Jon

I have the same container, but I am using it horizontally and punched holes through the white cap.
I will post a picture later.

I haven't had to empty a full container yet, but I'm hoping to use the lever on the bottom.

Photo attached.



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Looks great!