Serving San Diego and Surrounding Areas Since 1977.

The Problem

Aging Sewer Lines

Most homes built prior to the early 1970’s had residential sewer and drain lines composed of either cast iron or clay. In most areas residents are responsible for the maintenance of their lines from house to the city saddle which is located within 18 inches of the city main. The primary and extremely common problems seen in clay pipes are root intrusion at the joints and cracks.

Root Intrusion

Root intrusion into sewer pipe systems is reported to cause 50% of all sewer blockages. Cost associated with caring for root intrusion in the past has been expensive and laborious and, is rarely a permanent fix.Nu Flow® trenchless technology creates a seamless pipe which prevents infiltration and exfiltration, restores the structural integrity of the original pipe, and eliminates the joints which weaken and allow root intrusion.

Calcification in Sewer Lines

Over time, calcium deposits from water form a crusted coating called ‘calcification’ which clogs up household pipes and drain lines, especially when hard water is in use. Once pipes are lined with epoxy, calcification can no longer occur because the deposits cannot adhere to the interior walls of the new epoxy barrier pipe.

Ground Movement Affects Sewer Line Integrity

Major seismic activity can cause breaks in sewer and drain lines, but more frequently, minor seismic activity causes cracking and structural damage at the joints. The seamless, “jointless” nature of the PIP method means not only is the existing problem solved, but the new, seamless pipe will avert future problems as well.

The Process

Identify the Problem by Sewer Camera

When you call to have us to evaluate your sewer and drain lines the first thing we will do is to use a camera to run through your sewer main lines and/or kitchen/laundry lateral lines. The camera footage is recorded on DVD format and you are provided a copy of the DVD and a plan of how the sewer lines run through your property. From here the technician will be able to evaluate your needs and recommend the best solution for your specific problem.

Clean the pipes

Once the problem and solution are identified, the Nu Flow® process can begin. The first step is to clean out all roots and remove any calcite in order to return the pipe back to its original functioning diameter. To do this we either jet the lines or use pneumatic tools such as the scorpion cutter. Cast pipe may require additional preparation if the pipe is badly corroded or there is a void in the pipe.

Install the Liner

After the cleaning process is complete, the lining can begin. The length of liner needed is cut, a custom two part epoxy is mixed and poured in to permeate the felt liner. The saturated liner is then pulled in place, the bladder is inflated and the curing begins. Once the epoxy lining has cured, the bladder is extracted, leaving a complete structural pipe within a pipe. To insure that the job has been performed perfectly, a camera is used to inspect the work and you receive a DVD copy of this as well.

The Benefits

Prevents Root Intrusion and Stops Leaks

Cured-in-place epoxy lining molds to the diameter of the host pipe literally creating a seamless pipe within a pipe. This eliminates the possibility of future root intrusion. The lining process also eliminates the problem of sewage leaking out below your home or into your yard today and for the foreseeable future.

Increases Flow

Cured-in-place pipe actually increases flow capacity because the Nu Flow® pipe is smoother than old clay, cast iron, or concrete pipe. Calcification deposits will not adhere to the epoxy-lined walls; thus, flow is unimpeded, and future blockage from normal pipe use is prevented.

No Digging or Destruction

All of the Nu Flow® lateral rehabilitation techniques can be launched through cleanouts. Above ground there are no piles of excavated dirt, no busted hardscape to repair, no traffic tie-ups, and no haggling with subcontractors over repair of the damage. You can tear up your floors, lawn and more, but why would you if you didn’t have to?

Offers the Structural Strength of New Pipes

The finished product withstands every corrosive environment, as well as the test of time. Resin formulas are custom-specified to meet customers’ special requirements. Nu Flow® liner enhances the structural strength of host pipe and acts as a stand-alone pipe within a pipe, meeting or exceeding ASTM D790 Standards. The life expectancy of the Nu Flow® liner is over 50 years.

Cost Effective Alternative to Sewer Drain Replacement

Replacing underground sewer drain pipe means costly excavation of slab foundations, flooring, sidewalks, streets, driveways and landscaping, only to have the same problems reoccur. Nu Flow’s® proven trenchless technology process has been used since 1998 to restore drain lines to better-than-new condition, without destruction of floors, walls, foundations, landscaping, driveways


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