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Old 04-05-2012, 12:32 PM   #1
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Retrofitting an ejector pump


I'm putting a bathroom in the basement, everythings already rough plumbed, problem is that the orginal owners had a Zoeller M137-C pump in the ejector pit with a 1.5" discharge to the main sewer line (serves laundry and 1 sink). As I understand it this won't work for toilet. Is there a way to get around completely replacing the 1.5" pipe with 2" pipe? I'd like to avoid cutting into the sewer line. Thanks!

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Old 04-05-2012, 01:53 PM   #2
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Retrofitting an ejector pump


The UPC code requires 2" ejection line with a full port ball or gate valve and a check valve.

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Old 04-05-2012, 10:00 PM   #3
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Retrofitting an ejector pump


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Originally Posted by TheEplumber View Post
The UPC code requires 2" ejection line with a full port ball or gate valve and a check valve.
Yes, BUT, if the system is engineered, they can put in whatever they want.

We have this situation in our town in quite a few places actually.


Pumps are pumping up 1.5" discharge line approximately 200 ft where they dump into a shared 3" discharge pipe which travels approximately 100 more feet before it goes to gravity.


I personally think that engineer should be shot. <_<
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Old 04-05-2012, 10:03 PM   #4
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Retrofitting an ejector pump


And so : In response to the original post (sorry I got lost there)


I'm a little confused. 1.5" discharge aside (it does work, i've seen it work, it's just not the best idea and doesn't meet code for that matter)


You're saying the basement bathroom is already plumbed into the ejector?

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Old 04-05-2012, 10:18 PM   #5
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Retrofitting an ejector pump


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Originally Posted by Alan View Post
Yes, BUT, if the system is engineered, they can put in whatever they want.

We have this situation in our town in quite a few places actually.


Pumps are pumping up 1.5" discharge line approximately 200 ft where they dump into a shared 3" discharge pipe which travels approximately 100 more feet before it goes to gravity.


I personally think that engineer should be shot. <_<
I just did one in 1 1/4" for 80ft to the city's pressure system. I asked the city engineer to verify the size cuz I didn't believe him. Sure enough, 1 1/4" was stubbed to the property.

But I think the OP's situation will require a 2" line for a grinder
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