Zoeller M137 - 1/2 HP Cast Iron Effluent Pump w/ Vertical Float Switch

Good, quality pump.

This pump works well when it's new. However, after two years the float switch becomes problematic and stops all together. I've had to have three of these pumps installed in less than six years due to faulty switches. Including the installation, the price equates to about $1,000.00 per pump. I believe the manufacturer should build a better switch mechanism for a product which is by and large excellent.

I needed an effluent pump for my basement plumbing and a friend said to get a Zoeller. That was over 20 years ago. The first one finally gave it up and I didn't hesitate for one second to buy another. They are worry-free work horses and don't think I would ever consider buying a different pump. I highly recommend Zoeller.

My only problem with this pump is it is so quite that I can't tell if its running. So far it is great, I hope it continues for years to come.

I depend on this model to keep my basement dry. Very dependable. I have two of them in different sump crocks.