I have two different wells, one holds my ejector pump and the other one holds the sump pump. I recently was getting water in my sub basement and it was coming from between the basin w/ejector pump and the concrete. Once we drilled a hole in the basin the water drains from the concrete into the basin. Is there supposed to be holes in the basin if yes, where and how many? I also get a bang sound after the pump pushes the stuff out. Do you know if that has anything to do with the piping or check valve? My other sump pump runs every minute, should there be holes in the basin to let more water drain all at once? I purchased this home and have been experiencing difficultlies, I think the drain tiles around the house pump into the sump pump and the interior water pumps into the ejector pump. We are experiencing high water tables here.

Hello Sunset222,

Sewer Ejector and Sump Pump system are 2 completely different systems. They should not be interconnected. One is for sewage and discharges sewage into your house sewer system while the other one is for clean water that is being discharged to the curb. Some municipalities allow sump pumps to discharge into City sewer system.

Sewer Ejector is a self-contained, SEALED, system. There are following holes in a sewer ejector:

1. Intake hole, on side, usually 3" or 4"
2. Discharge hole in the lid, size: 2"
3. Vent, in the lid, size 2"
4. Hole for elec./ float / alarm cables, in the lid, size: 1 1/2"

All penetrations have to be sealed with rubber seals. Lid itself is sealed to the top of the collection bucket. Every time you lift up the lid, you have to apply new seal before you cover up.

Sump pump is an Open collection pit. It doesn't have to be sealed. You can have as many holes in it as you wish. It has one discharge pipe and you can have several intake pipes. Sometimes, you have open top with grate over it through which rain water enters the container. Discharge pipe for sump pump should match the size of pump. It can range from 3/4" to 2".

"Bang" sound can be eliminating by installing additional Check Valve on the discharge pipe. One should be as close to the pump as possible, the other one in other location breaking the fall of returning water.

I am enclosing 2 diagrams to better illustrate my point. One is showing typical installation method for Sewer Ejector and the other one shows Sump Pump.

Hope that will answer your question. Milo

Hi Milo,
Thanks for the information. As far as the ejector pump; I was getting water coming up between the basin and the concrete. I don't know where this water was coming from but it wasn't the sewage water. I took a vacuum and was pulling water for over 8 hours. I looked at the basin and it is not sealed but does have a lid. I don't get any odor but have not removed the lid. So, after tiredless hours of dumping the vacuum we drilled a small hole in part of the basin that was not even to the concrete. The water started flowing into the ejector basin. Do you have any ideas of where this water can be from? Could this be water that is under the foundation? I don't understand the construction enough to know where the water came from. This is also the pipe that I get the banging sound from. I see it has a check valve on the pipe above the lid but don't know if there is a check valve in the basin. Sorry, I don't know anything about this and am trying to educate myself and see if we did the right thing.

The sump pump; it pumps the water from the drain tiles and gutters into the middle of my lawn. I am trying to get the city to help me run this to the street. The question on this is: Is there any way I can get this not to pump every minute? The drain water has three corrigated tubes that dump the water into the sump pump basin. I have only seen one tube return water into the basin. It has been raining here a lot! The pump runs every minute and I wondering, what can I do to make the pump run less.

Thanks for your time and information.

You should not drill any holes into the sewer ejector collector.

The water you are getting in that area is probably ground water. You have to find different way to remove it and seal the hole you've already drilled. You can buy small pump, set it into the pit bet. Collector and pit walls and run 1" PVC discharge pipe to the exterior.

Sump pumps are size according to what discharges to them. I am assuming you have undersized pit and small pump. You have to either build large concrete pit or buy large collection bucket. Large bucket would be 48" tall and 30" in diameter (made by Zoeller ). Moreover, get M267 Zoeller pump to discharge the water. It is a powerful pump with 2" discharge.

As far as I know, City is not responsible for installing rain run off to the curb. It is your responsibility. Since you have active water problem, you should do it w/o waiting.

Let me know how you did... Milo