How To Find Underground Sewer Lines

 
Thread Tools Search this Thread Display Modes
Old 11-05-2010, 07:15 PM   #1
President
 
CarrPainting's Avatar
 
Trade: Residential Repaints
Join Date: Jun 2010
Location: Buffalo
Posts: 1,212
Rewards Points: 868

How To Find Underground Sewer Lines


How does one go about finding an underground sewer line that T's into another sewer line?

Also, what is the distance one of those fiber optic cameras can go?
CarrPainting is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   
 

Old 11-05-2010, 09:12 PM   #2
Member
 
WC&T's Avatar
 
Trade: GC, Sitework & Underground Utilities
Join Date: Feb 2010
Posts: 81
Rewards Points: 75

Re: How To Find Underground Sewer Lines


if the side sewer is tied into a sewer main line than the best way is to TV the main line from the nearest manhole, have them locate the side sewer tie in and mark it for you.

Depending on the size of pipe and how many bends are in the line they can usually scope about 100 ft of side sewer.

WC&T is offline  
Old 11-06-2010, 01:24 AM   #3
President
 
CarrPainting's Avatar
 
Trade: Residential Repaints
Join Date: Jun 2010
Location: Buffalo
Posts: 1,212
Rewards Points: 868

Re: How To Find Underground Sewer Lines


ok... well I have a sanitary sewer coming off my shop, and the plumber says it has a partial collapse but with decent flow... heres the thing tho... in the 1960's way before i was even born, while my dad was building my shop, they put in the sanitary sewer on a holiday week end and tied it into another sanitary sewer that feeds an apartment complex... thing is, its somewhere in my neighbors back yard...
CarrPainting is offline  
Old 11-06-2010, 02:59 PM   #4
Registered User
 
Grn_mtn_boy's Avatar
 
Trade: Excavation, telecom
Join Date: Nov 2010
Posts: 1
Rewards Points: 10

Re: How To Find Underground Sewer Lines


You maybe able to find a local dowser. I've seen my father locate all kinds of under ground utilities this way. Some don't believe, but I've seen it work to many times not to believe.
Also you maybe able to get a locating service ( think dig safe) to come out for a fee. Just run a metal snake down the line and have them connect their tone to it. Should work well. I locate telephone, power and catv like this.
Grn_mtn_boy is offline  
The Following User Says Thank You to Grn_mtn_boy For This Useful Post:
dougchips (11-08-2010)
Old 11-06-2010, 03:38 PM   #5
Pro
 
Cuda's Avatar
 
Trade: Drainage, Waterproofing & Sewer Contractor
Join Date: Mar 2009
Location: Seattle
Posts: 198
Rewards Points: 172

Re: How To Find Underground Sewer Lines


Just find a local sewer contractor or even a drain cleaner to run a push pull camera down the shops line, it can be marked at ground level giving path and depth. And even if the camera can not get thru the offset pipe you can mark the spot. We used to get $400 for most of these jobs but with so much competion these days the rate is down to $200. Length is determined by the condition and material of the pipe. We have 325 ft units but sometimes to get the full 325 we have to float some styrafoam with a string down to the city manhole then pull wire to that point, then pull the camera out for long inspection.

Last edited by Cuda; 11-06-2010 at 03:48 PM.
Cuda is offline  
Old 11-06-2010, 04:09 PM   #6
Pro
 
dayexco's Avatar
 
Trade: entrepreneur of excavating expertise
Join Date: Mar 2006
Posts: 3,239
Rewards Points: 738

Re: How To Find Underground Sewer Lines


Quote:
Originally Posted by CarrPainting View Post
How does one go about finding an underground sewer line?
i've found a 210 hyundai with a 48" toothed bucket works best on clay/pvc/transite/orangeburg pipe...go right thru it, don't even know it's THERE!!!
__________________
This man speaks volumes of wisdom...a piece of a PM I got from him

(Denick) The only good things to learn are the things worth teaching others
dayexco is offline  
The Following 4 Users Say Thank You to dayexco For This Useful Post:
dprimc (11-07-2010), peteo (01-26-2011), S.R.E. (11-06-2010), walkerj (01-30-2011)
Old 11-06-2010, 07:57 PM   #7
Registered User
 
Marty63's Avatar
 
Trade: carpenter
Join Date: Oct 2010
Location: Saint Louis Mo
Posts: 11
Rewards Points: 10

Re: How To Find Underground Sewer Lines


Might sound crazy but if you bend 2 wires in an L shape. 4” short end and about 12” long end and hold buy the short end loose, with the long end pointed in front of you, when you get on top of a pipe the wires will turn facing each other. Try it with a pipe on the ground that you can see it’s easy to do and works fairly well.
Not sure why it works a plumber show it to me years ago, and I trust it with low risk jobs. I used coat hangers, welding rods, and even ceiling wire.
Marty63 is offline  
Old 11-07-2010, 08:42 PM   #8
Vagitarian
 
rino1494's Avatar
 
Trade: site and utility contractor
Join Date: Jan 2006
Location: Dallas, PA
Posts: 3,471
Rewards Points: 2,064
Send a message via AIM to rino1494

Re: How To Find Underground Sewer Lines


Quote:
Originally Posted by Marty63 View Post
Might sound crazy but if you bend 2 wires in an L shape. 4 short end and about 12 long end and hold buy the short end loose, with the long end pointed in front of you, when you get on top of a pipe the wires will turn facing each other. Try it with a pipe on the ground that you can see its easy to do and works fairly well.
Not sure why it works a plumber show it to me years ago, and I trust it with low risk jobs. I used coat hangers, welding rods, and even ceiling wire.
I've heard of guys doing that to find ground water to determine where to drill their wells. I heard that it works, but have never tried it.
__________________
Life is hard. It is harder when you are stupid

Uncle Sam wants YOU....to speak ENGLISH
rino1494 is offline  
Old 11-08-2010, 03:48 PM   #9
Stud
 
Upchuck's Avatar
 
Trade: Excavation
Join Date: Apr 2009
Location: Mass
Posts: 536
Rewards Points: 518

Re: How To Find Underground Sewer Lines


Our operator does that all the time holding the plastic handle from a
5 gallon bucket . Works pretty well finding water & sewer pipes. I'm more comfortable with digsafe & as built plans if they are available.
Upchuck is online now  
Old 11-08-2010, 05:50 PM   #10
Pro
 
Little's Avatar
 
Trade: Commercial Construction
Join Date: Jul 2006
Location: New Jersey
Posts: 274
Rewards Points: 250
Send a message via AIM to Little

Re: How To Find Underground Sewer Lines


I don't think that works for plastic pipe but maybe i'm wrong. I actually have seen this for the first time this year. We were brought in to repair a broken domestic line at an apartment complex. One of my guys says ill find the line right now, grabs a very thin steel wire and holds it loosely in his hand and the frikken thing actually turned in the exact location of the main i was standing there shaking my head in disbelief. That **** is crazy but def works.
__________________
Commercial Construction, Central Jersey
Little is offline  
Old 01-26-2011, 07:35 AM   #11
Pro
 
HUI's Avatar
 
Trade: Utility, sitework, and erosion control contractor
Join Date: Jan 2011
Location: Plymouth, IN
Posts: 219
Rewards Points: 178

Re: How To Find Underground Sewer Lines


We call it "witchin wires". Usually you need water flowing for it to work. Usually old time farmers are the best at it since they had to find drain tiles in the middle of an open field
HUI is offline  
Old 01-26-2011, 09:25 AM   #12
New Guy
 
denjul's Avatar
 
Trade: electrical contractor
Join Date: Mar 2009
Location: iowa
Posts: 20
Rewards Points: 10

Re: How To Find Underground Sewer Lines


I have done quite a bit of witching lines. I always thought it had something to do with the earth's magnetic field being disturbed but don't really know. What is wierd is an old grave digger told me that he uses it to find unmarked graves and can tell if the body was male or female because in one the rods will go towards each other and in the other they go away from each other. I tried it and it works. Don't know why. It will work with copper wire also. I usally use marking flags. Just hold them loose and it will work.
__________________
Retired lineman turned electrician

Last edited by denjul; 01-26-2011 at 09:30 AM.
denjul is offline  
Old 01-26-2011, 10:56 AM   #13
operator
 
peteo's Avatar
 
Trade: excavating, concrete, landscaping
Join Date: Jan 2011
Location: Erie, Pa
Posts: 247
Rewards Points: 200

Re: How To Find Underground Sewer Lines


Quote:
Originally Posted by dayexco View Post
i've found a 210 hyundai with a 48" toothed bucket works best on clay/pvc/transite/orangeburg pipe...go right thru it, don't even know it's THERE!!!
peteo is offline  
Old 01-30-2011, 05:36 AM   #14
Member
 
medusa's Avatar
 
Trade: retired civil
Join Date: Dec 2005
Location: Texas
Posts: 42
Rewards Points: 25

Re: How To Find Underground Sewer Lines


Welding rods bent as described above, 4" +/- short legs of "L", what ever length is left for long legs of "L".
You need to hold the short legs loosely, as loose as possible, so they can swival, sometimes inward, sometimes outward, even on the same line, and just tight enough for the long legs to be level.
Works absolutely great, IF there are on overhead wires to interfer.
Why it works, no idea.
Won many a free lunch using these .

You have to "believe" that they will work for them to work.....

medusa is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to find subcontracting jobs howseworks Business 13 02-28-2011 07:25 PM
2" force main sewer Upchuck Excavation & Site Work 13 04-18-2010 06:40 PM
Where to find Home/Construction Shows/Expos? nitram General Discussion 5 05-24-2009 12:54 PM
where to find updated pricing inlaw Finish Carpentry 18 05-05-2009 11:09 PM
Trying to find a shark knife. willftingen Flooring 4 04-20-2009 12:57 PM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?