Lateral Sewer Repair and Restoration Specialists
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FAQs

FAQ

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Can the liner be inserted from only one access point?

Yes. Our liner can be inserted through an existing cleanout or from a small excavation to install a new cleanout. The liner is open on both ends so there is no need to access the other end of the liner with a cutter.

When inserted through a clean out how is the liner directed either upstream or downstream?

Using a patented soft shoe, allows us to direct the liner either in either direction upstream or downstream.

How do you know the new liner is fully saturated with the special epoxy resin?

A vacuum source on our trailer is attached at the end of the bladder and through this suction system its evacuating all air from the liner and draws the thermo‐set resin through the liner as it passes through our resin calibration roller. Because the bladder is translucent it allows our trained technicians and inspectors to visually verify and confirm that the liner is completely impregnated with resin and that there are no areas missing resin.

What if the cleanout is in the basement?

Liner Guys use a portable Launch tank designed by LMK. Its completely portable and easily transported to basements or any job site where the liner will be launched from.

Do you need a lateral push camera?

Yes, we use this camera for supplying pre and post video. Also the Liner Guys use a LMK launch tank that includes a pressurized camera port which allows for perfect the insertion of the lateral camera systems. The camera travel’s through the center of the translucent bladder for a positive visual verification of the successful placement of the inverted liner prior to the curing of the bladder. The special designed camera port cap closes around the camera’s push rod systems allowing for minimal air loss during inspection. The air which can be added back into the inversion tank by running one of two air tank systems on site will keep the air pressure is up and never comprised during inspection of the liner. This is an important feature that allows Liner Guys using LMK’s Performance Liner® to be visually inspected by CCTV before the liner is fully cured and since air pressure is never compromised, the thermo‐set resin that was forced into cracks remains in place until the resin is cured.

How do you know the liner is fully inverted and not folded or so the end is open and be assured that the liner is not protruding into the main pipe?

The use of the pressurized camera port allows Liner Guys technician to view the liner through the translucent bladder making sure that the liner bladder has been placed in the proper location which is typically and in most cases 2 ‐inches from the mainline city pipe. We also use LMK’s ISG‐Liner™ (Inverted Structural Glass Liner) which allows easy inversion into the old pipe but does not stretch in length, so the liner does not protrude or stretch into the main pipe during installation like other less precise lining systems in the market today. The use of the camera port, technical and proper measurement and advance lining tubes ensure proper placement every time.

Is it possible start and stop the liner anywhere in the sanitary sewer pipe?

Yes. Once the Sanitary sewer pipe data is collected, the correct and specific sized bladder and liner tubes are cut to exact length. Liner Guys will then insert the liner into the translucent inversion bladder. The liner will be carefully placed in the pipe at the exact specific location by simply measuring and then positioning the liner in a specific location within the translucent bladder. The liner is then connected to the inversion bladder using the Liner Guys trained systems which allows the liner to be inverted at any given point within the lateral pipe.

How are side connections or any small diameter laterals or connections reinstated without excavating?

Liner Guys use a state of the art robot cuter to reinstate any discharge pipe.

How does the lateral liner cure?

We have four methods to the curing process. Ambient, Steam, Hot Water or Hot Air is used to cure the liner. At ambient temperatures the liner can be cured in 2 ‐hours or less. Using Liner Guys steam cure system from LMK the liner can be cured as fast as 30 minutes. We recommend running hot water for a short time after the liner is finished to help setup the curing process.

Is inflation pressure in the liner ever dropped during the installation?

The liner is installed where the inflation pressure is never compromised because both the liner and bladder invert together as an assembly. It does not require a high pressure of air to keep the bladder inflated This is an important feature as resin migrates into pipe joints and fractures as the liner is inverted through the pipeline. Usually pressure is never dropped below 2 to 3 PSI so the resin stays in‐place, unlike other less precise 2‐step inversion processes.

How do you cut the ends of the liner open after it has been installed?

There is no cutting required or necessary because the bladder extends beyond the end of the liner keeping the end of the liner fully open as well as the start.

How many lateral installations can we perform in a single day?

On average we can accomplish successfully 4 to 6 laterals renewed in one day.

What size of lateral pipes can be renewed?

Liner Guys renews lateral pipes from 2″ to 8″ diameters.

How many feet of the lateral pipe can be renewed by one liner installation?

Liner Guys uses LMK’s Lateral Launch Tank, Up to 130′ of 4″ liner or 100′ of 6″ liner can be inserted through single onsite installation.

Will the liner significantly reduce the original pipe size?

There is a minimal reduction in diameter of your old pipe and the smooth bore of the new interior of the cured in place pipe typically improves the flow rate, as taught in the manning equation.

Are there other pipe repair applications that can be suited for using Performance Liner®?

Liner Guys uses LMK’s Performance Liner® lateral system and it is often used to renew roof drains, industrial piping, commercial piping, and residential drain and waste piping as well.

Is the Performance Liner® lateral system chemical resistant?

Yes. A variety of thermo set resin systems are available for use to purchase through our supplier out of Chicago based on chemicals and temperature of the effluent. Liner Guys Supplier (LMK technologies) has an engineering staff that will design the custom liner specifically for our project.

Does the liner stick to the existing sanitary sewer pipe?

Sometimes liners may stick and sometimes they do not but it has no effect on the integrity of the systems once in place.

How do you verify the bond between the liner and the host pipe?

No manufactured CIPP product or installation contractor can tell you when the liner sticks and how well it is stuck to the pipe. We just cannot predict that. With existing grease in sewer pipes it has a serious effect on adhesion.

Is the lateral sewer liner root resistant?

Yes, the lateral sewer liner is a new pipe within a pipe so there are no open joints, cracks or crevices where roots have an opportunity to grow. The old cracks and breaks are sealed with the new systems.

How long will the new lateral lining system last?

Liner Guys supplier LMK’s Lateral liners have an engineered service of 50 ‐years based on ASTM F1216‐09. The service life is based on extrapolation of testing data of the liner’s physical properties.

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Contact Information

Liner Guys
25 Invicta Court,
London ON Canada
N6E 2T4
Email: steve@linerguys.ca

Liner Guys, Sewer Contractors, London, ON