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Q: How
soon will we see results?
Q: Why
is your method better than cutting?
Q:
Do
we need to clean before the treatment?
Q: Does
the application have any effect on the Wastewater Treatment
Plant?
Q: Does
the foam stop or interfere with the flow?
Q: Does
this process kill the tree?
Q: How
many feet can your crew treat per day?
Q: How
long does it take to treat a sewer?
Q: When
the roots fall off, will they cause a stoppage?
Q: Is
cleaning necessary after treatment?
Q: How
often should we treat root-infested lines?
Q: If
a sewer line backs up, what procedures should we follow to
have the guarantee applied?
Q:
Is this service available for house lines?
Q:
How soon will we see results?
A:
The roots are killed on the day of treatment. However, this
is not the same as seeing the results. Root decay depends
on many factors, including type of tree, mass of roots, and
flow conditions. After months of decaying, the root may or
may not be gone, but it will not be able to support a stoppage.
Q:
Why is your method better than cutting?
A:
Cutting is only a temporary solution; when roots are cut out
of the pipe they grow back quicker and heavier, eventually
destroying the pipe. With cutting, the long-term costs of
replacement or relining will far exceed the cost of maintaining
the sewer with chemical treatment.
Q:
Do we need to clean before the treatment?
A:
It is rarely necessary to clean a sewer before treatment.
However, if large root masses exist and the customer wishes
to cut them out before the treatment, root control operations
must be delayed 30 days after cutting to allow time for the
roots to heal and start growing.
Q:
Does the application have any effect on the Wastewater Treatment
Plant?
A:
No, it will not have any adverse effects on the Wastewater
Treatment Plant, and it will not disrupt the wastewater treatment
process. The main ingredient in Razorooter II, Diquat Dibromide,
is EPA approved for aquatic use and is also used in ponds
to kill algae.
Q:
Does the foam stop or interfere with the flow?
A:
No. The normal sewer flow will pass under the foam during
application. The flow of wastewater may become slower temporarily,
but will not cause a stoppage.
Q:
Does this process kill the tree?
A:
A very small percentage of the tree root system actually lives
in the sewer pipe. The treatment will only kill the roots
inside the pipe and approximately twelve inches outside the
pipe. In fact, Duke’s guarantees not to kill any above-ground
vegetation.
Q:
How many feet can your crew treat per day?
A:
Production often depends on the sewer section size, location
and the proximity to one another. On an average day with good
weather, we can treat approximately 6,500 feet.
Q:
How long does it take to treat a sewer?
A:
A typical 300-foot section of 8-inch pipe will take about
20-30 minutes to treat.
Q:
When the roots fall off, will they cause a stoppage?
A:
As the roots decay, some will slough off and fall into the
flow and others will remain in the pipe. Because the decay
occurs over time, the rate at which the roots fall off the
pipe will be too gradual to cause a stoppage.
Q:
Is cleaning necessary after treatment?
A: Whenever
possible, we suggest leaving the line alone after treatment.
However, if there is a concern for future blockages due to
the line’s history, our warranty will not be affected
by cleaning after treatment. If a line must be cleaned due
to debris or grease buildup, it does not need to be retreated.
However, if roots are the reason the sewer needs cleaning,
it should be retreated. It is important to allow the roots
in these sewers time to decay. To get the best results from
a root control application, leaving the sewer line alone is
optimal. The cleaning process can remove bacteria in the line
that help the decay process.
Q:
How often should we treat root-infested
lines?
A: The
initial treatment is guaranteed for 2 years, and should be
retreated no later than 6 months after the expiration date.
All lines treated upon expiration or within six months after
the expiration date will be guaranteed for an additional three
years. From then on, treat every three years to keep your
sewers under guarantee.
Q:
If a sewer line backs up, what procedures
should we follow to have the guarantee applied?
A: First
relieve the blockage. Once the blockage is gone, call Duke’s
to inform us that you had a blockage on a line under guarantee,
and we will schedule a re-treatment at no cost.
Q:
Is this service available for house lines?
A: Duke’s
will treat house lines when working for municipalities and
sewer authorities but does not offer this service to individual
homeowners. Duke’s can only treat house lines through
an outside clean out; no treatments are initiated from inside
the home. In addition, it is common for the foam to travel
up the house line ten to fifteen feet during a normal main-line
treatment.
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“Duke’s
solves maintenance problems. How do I know? Because I have
worked with them directly for many years on several projects
and I’ve seen the exceptional results first-hand. I
have personally entered manholes where we had up to 80% blockage
caused by large root masses. After the Duke’s application,
I re-entered one year later and the roots were completely
decayed. I’m so confident
in Duke’s products and services that I refer them directly
to my municipal clients.”
–Jim McGregor, PE, Hatch Mott McDonald
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