Sump Pump replacement

Hello Folks-

I just bought a house that has Zoeller M72 pump installed. The pump is about 3 years old. I am trying to replace it with Zoeller ProPack9 . I have two questions:

1) is this the good replacement that can give me protection against power outage and primary pump failure?
2) My sump pump pit is radon mitigated. See attached picture. It has two pipes coming out of lid. Sump pump and Sprinkler system drainage. The lid has some screws that I can remove but do I need to remove drainage pipe and sump pump outlet to remove the lid completely?
Please help!

 

Welcome to the forums.

That looks more like a sewage ejection pit..... not a standard sump pump pit. The difference is a sewage pump also pumps sewage effluent up while a sump pump only pumps rain water.

Do you know what that sump is for ?

 

I will try to you get a picture of sewage but from what I am told, this is a sump pit. I have traced metal black pipe and its connected to sprinkler system.

 

You have to look at the specs of the pack you are considering. Notice how the backup capacity is dramatically less than when powered by AC. With zero head it has half the capacity but the higher the head the worse the battery backup system performs. Before spending the money you need to find out if the backup is able to keep up with inflows. Also not that the battery will need to be replaced every several years. And, the backup pump will only work as long as there is charge in the battery so it may work for shorter power outages but the battery may run down and the pump stop working during extended outages.

 

thanks @pilot. How do I determine the if the backup will be able to keep up with inflow? Do you have a recommendation as far as good backup system is concerned?

 

You must somehow figure out how much pumping capacity you need. You can run the discharge from your pump into a 5 gallon bucket and time how long it takes to fill. Now you know how many gallons per minute it puts out. Then keep track of how often and long the pump runs after a bad rainstorm and you'll know roughly how much water you need to remove. Then I'd throw in a "fudge factor" of 25-50% to cover you for a unusually bad storm and so your pump doesn't run continuously.