iI put the de-icer in my Koi pond as soon as I opened the box. The blue light went on after I plugged it in the outdoor socket. It was almost 60 degrees here that day. Later that night when i took my fur kids out I checked on it and the light was red. It definitely cooled off. We're expecting snow and sleet on Thursday, I don't have to worry now that my fish will suffer from a totally iced pond. My pond is 1500 gallons. Thank you. I will probably order a 2nd one for next year, my other de-icer is old.
Verified purchase: Yes | Condition: New
Easy to use and install. Compact and love the light on the top so you can see from a distance that the unit is working!
Verified purchase: Yes | Condition: New
perfect for very cold winter and ice
Verified purchase: Yes | Condition: New
Good Product
Verified purchase: Yes | Condition: New
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