sewage ejector pumps

[sonnymoorer]

Has anyone installed a sewage ejector pump in the second chamber of a septic or in a basin feed by a septic tank?

Is there a problem with this configuration such as clogging of the pump or passing items through the pump and clogging the line going to the sewer. The ejector pump will pass a two inch solid.The line proposd is a 2 inch schedule 40 PVC with a length of 1700 feet going into a gravity feed manhole connection. I am considering a one horse ejector pump which is more than adequate for the dynamic and static head pressure on the line.

If a new septic is properly installed with file lines sealed, is there a probability of getting ground water leakage into the septic tank than would be pumped into the sewer.

The application is a smal restaurant with two toilets, a three compartment sink and two hand sinks with an absolute maimum peak flow of 20 gallonds per minute.

I anyone has any experience with this type of installation, I would like to know what problems were encountered if any.

 

[bimr]

You need to run this by your local plumbing department and sewer authority.

Generally, they have rules on what you can do and sometimes the rules are specific to the area. It may not be acceptable to dump into the manhole.

In Illinois for example, the minimum size of force main allowed is 3 inch with a grinder pump and 4" with a standard pump.

The plumbing code will probably require a grease trap on the restaurant connection.

Why would you want to use a septic tank? It seems that you need a lift station.

 

[bimr]

You need to run this by your local plumbing department and sewer authority.

Generally, they have rules on what you can do and sometimes the rules are specific to the area. It may not be acceptable to dump into the manhole.

In Illinois for example, the minimum size of force main allowed is 3 inch with a grinder pump and 4" with a standard pump.

The plumbing code will probably require a grease trap on the restaurant connection.

The local sewer authority amnd or plumbing inspector will also have to buy into your choice of pipe. You can not just use whatever material that you desire. You probably need a pressure class 100 pipe AWWA C900.

Why would you want to use a septic tank? It seems that you need a small lift station.