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Old 03-27-2015, 01:07 PM   #1
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Sewer line replacement question


So I'm not actually doing this job myself but I'm trying to get some advice on having my sewer line replace. IT's in really bad shape and I've been having it snaked every few months so I know it needs to be replaced. Near the front of the yard there used to be a tree and there were roots in the pipe. I actually dug up the last root last summer when I was landscaping so I know I don't have to worry about that anymore but still the damage was done. So I got estimates from a few people to replace it. All three were trenchless. The first two said they'd replace it from the house to the city sewer line. The third guy said 90 percent of the time the pipe is fine past the sidewalk so he recommended replacing it from the house to the sidewalk which was about $2000 cheaper. His reasoning made sense. He said the street is much better compacted than your yard is so it's less susceptible to damage from compression. I work in underground electrical construction and I know that we have conduits that are like 90 years old and are still fine that are buried in the street. So his reasoning made sense to me but I was sort of looking for a second opinion. Has anyone else replace just to the sidewalk? I just don't want to find out in 5 years that the part past the sidewalk is damaged. I did have a guy run a camera down it before buying the house and the only visible damage was where that tree was so I'm sorta thinking just do it to the sidewalk. Any advice would be awesome, thanks.
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Old 03-27-2015, 01:18 PM   #2
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Do it just to the sidewalk and you're creating a joint at the sidewalk where a failure can occur.

Just my 2
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Old 03-27-2015, 02:27 PM   #3
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Didn't the estimators camera the existing line prior to pricing?
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Old 03-27-2015, 02:59 PM   #4
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Ayuh,... I replaced Mom's years ago, from the house out,....

The actual Problem was right at the street, where 10 years earlier, they'd cracked up the clay tile when they put fiber-optics through,....

We under cut the street a couple feet to get a good clean cut on the tiles,...
Shoulda used flowable fill, but fixed it, 'n used the native soils to backfill it,....

In her case, the owner liability goes all the way to the main, well under the street,...
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Old 03-27-2015, 05:39 PM   #5
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In my town the city looks after the part from the property line out.
I would run a camera out and see where the actual problem is and the condition of the rest of the pipe.
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Old 03-27-2015, 06:01 PM   #6
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I would run a camera and make notes off the footage to problem areas.
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Old 03-27-2015, 06:32 PM   #7
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Quote:
Originally Posted by Ghostmaker View Post
I would run a camera and make notes off the footage to problem areas.
+1 on that. If your existing line has any bellies in it the trenchless line will not usually remove them, but rather follow them. So, you'll have new pipe with the same bellies.

The pipe under the street could possibly be hydro-jetted and then place a liner in it without damaging the street or sidewalk. liners do cost a lot, but maybe less than the street repair quoted.
A transition is then done between the poly and the liner, giving you all new pipe.
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Old 03-31-2015, 10:07 PM   #8
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In my experience, I have seen too many times where they replace only a section, and then due to whatever, a failure occurs at the point of transition. I would recommend replacing everything you are reponsible for, but do inquire with your city as they may hold responsibility for a section of the project, and if they are, I would ask they assist in the endeavor so it only gets done one time.
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Old 04-01-2015, 05:31 PM   #9
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At one time in my area they were re routing electrical lines and installing poles. They had a real bad habit of putting poles through the house sewers.
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Old 04-01-2015, 06:18 PM   #10
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In Ontario there is a program by the gas company to check your sewer line for gas pipe intrusion in case a directional bore ran a gas line through your sewer. It's free.
https://www.enbridgegas.com/assets/d...2012_Final.pdf

https://www.enbridgegas.com/gas-safe...y-inspections/

Last edited by joed; 04-01-2015 at 06:20 PM.
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