Septic System tie in?

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  #1  
Old 06-20-18, 01:01 PM
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Septic System tie in?

I have a fairly new sewerage system (a few years), it's a mechanical system(pumps air into tank).

I would like to add a washing machine drain to this existing system.
1. I can splice a 4x4x2 Y into the 4" line headed too the tank.
This will be a bit tricky because 4" pipe is stiff, plus there are other fittings along the way("45 deg el).

2. I would like to go directly into the concrete tank if I could. There should be a "knockout" on the tank to tie into. This tie in pipe would be 2" PVC. What do you think?
Also, are there any other requirements for the 2" pipe?
 
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Old 06-20-18, 01:36 PM
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Why in the world would you want to run another drain line all the way out to the septic tank? Just tie into the main line in the house.
 
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Old 06-20-18, 02:11 PM
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I won't break my concrete slab in my house to tie in, plus I don't know where the "main line" is, it's under concrete.
Sorry if I didn't make this clear.
 
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Old 06-20-18, 03:42 PM
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What State or Province is this Septic System located in . . . . because if it was an engineered system, and you alter the projected in-flows, you may have to get a permit issued by that Jurisdiction to make the proposed alterations and to make sure that the existing and approved design can handle the increase.
 
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