Review on 💪 Zoeller M53 Mighty-Mate Submersible Sump Pump - 1/3 HP - Enhanced SEO by Brandon Jaime

Bought 5 years ago after hearing good reviews of this pump (bought a second one for a different one a year later). A few weeks ago I noticed my backup battery pump turning on. The switch did not turn on the Zoeller M53 pump even though the float was fully submerged in water. Slight pressure on the float turns the pump on. After some research I ordered a new float switch and replaced it. (The float ball was clean, free of obstructions, and not filled with water.) The new switch did not fix the problem. After further research, I found that Zoller's weak point is the installation of the float. I don't think I'll spend $150 on a Zoeller pump every 5 years. I will try another brand with a different float arrangement.