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Pipe Lining Specifications – Trenchless CIPP Specs Sewer and Rain Drain – Sample

Looking for pipe lining specifications to use for bidders?

The distances and pipe diameters are a good start to give a ballpark estimate for relining. For example:

160 feet of 4″ lateral drain pipes


387 feet of 6″ lateral pipes


54 feet of 8″ lateral pipes


112 feet of 4″ vertical pipes


two 8″ vertical pipes of 145 feet each.




Actual pricing will vary by:

  1. How much scale and corrosion has to be removed and how will it be collected and where will it be disposed of correctly

  2. Pipe access: Where will the hydro-jetting (cleaning) work be performed from, where will the video inspections be performed from

  3. Pipe lining access decides which technology (air inversion and/or pull-in-place) will be used: can the air inversion pipe lining equipment be brought to the roof via staircase? Are the roof drain grates sealed into the roof or are the bolts accessible? For the 2 x 145′ pipes of 8″ diameter, is there access in the basement to do a pull-in-place liner or is there access half way up to do air inversion and can the inverter be brought to that halfway point?

  4. How many bends are in the pipes? Both types of technology have limitations imposed by pipe bends like 90’s and wyes.

  5. Flow management: each liner will take 1-4 hours to cure (depending whether ambient cure by exothermic reaction or steam is used). During the cure time no flow can occur. So will work be performed at night?


Normally for a job like this before the job goes out to bid a pipe lining company has done a pipe video inspection with the following specifications:

  • Color video

  • On-screen distance counter

  • The operator is an experienced pipe lining installer that provides live commentary about the constraints listed above (so that other bidders may account for changes in expense)

  • The start or end of any video footage shows the outside of the pipe surroundings so that false video footage can be avoided (yes, some companies are well known for providing videos of other pipes for their own interests)

  • The video is loaded on a central server (like YouTube) so it is easily disseminated to bidders and cannot be lost, broken etc.

If we did the video work it would run around $3k, but we recommend pipe restoration hub ( contact you to give you names of other experienced and approved pipe lining companies that can do the video and provide pipe lining bids.


So given that we don’t have all the information, here are some basic specifications for the pipe lining job:

  • Clean and inspect approximately 1,015′ of 4″-8″ horizontal and vertical rain drain and/or sanitary pipes

  • Provide video recorded footage of pipes prior to relining and obtain approval from our representative (George Hornbein) to re-line pipe.

  • Schedule the pipe lining for when least disruption of flow would occur

  • Use air inversion and / or pull-in-place pipe lining technique to minimize access point excavation and restoration

  • Include cost estimates for access point excavation and restoration

  • Use only pipe lining materials approved by the NSF, EPA and IAPMO

  • Provide 50 year labor and materials warranty

  • Utilize only 100% pure epoxy resins that are “styrene” free (styrenes are a class of compounds called “fillers” found in some cheaper resins that are toxic to fish and have a foul chemical odor that lingers for weeks!)

  • Provide references of vertical pipe lining installations exceeding 150′ at one time

  • Provide “after” pipe lining videos, showing the surroundings of the access point at the beginning or end of the video

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