Septic Industry Problems
like to discuss some problems or opportunities that are
facing the industry. These problems are the result of improper
installation of the alternative systems that are on the
market today. We are finding many questions regarding the
proper way to install these systems?
At Dixie Septic, our Rock and Pipe systems are tried and
true throughout the industry. We honestly find that with
proper maintenance and upkeep our systems will last well
over 20-25 years. That is why we have stayed with the Rock
and Pipe systems for over 40 years of serving our customers
here in central Florida. What you will read below was taken
from the “Onsite Installer” trade magazine that
we get from the industry. This issue was February 2008’
starting on page 24.
The industry finds this is causing failure in the chamber
systems. The failure comes in more than one way. We only
ask you, which way would you prefer to go, a long lasting
Rock and Pipe system, or a system that is doomed from the
Chamber type drainfield systems
and fabric covers.
||Drainfield Fabric Paper
The question is whether they should or should not
install a fabric paper over the chamber type drainfield
When Dixie Septic installs the Pipe
and Rock systems we ALWAYS install a fabric paper
over the drainfield. This prevents sand and dirt from
getting into the rock and drainfield. In fact the
Health Department requires us to do this. THEY DO
NOT require that chamber type drainfield systems be
covered with fabric.
An Installer we spoke to posed a question: (We're paraphrasing
here). When they started using chamber systems about eight
years ago. they found even after using a fabric cover, that
silt was getting into the chambers and had blocked them
up about one-third full of silt. (Loam is a rich soil consisting
of sand, silt, and clay. Some loam is found in our area
of Florida, writers note). They wanted to know if it was
coming in from the louvers on the sides or elsewhere? The
answers are interesting.
One installer replied that he had found even with
or without fabric cover that the bottom of the chamber
had welled up to fill almost one-third of the chamber
This truly was some kind of expansion of the material
as there was no overburden and no sinking of the chambers.
He had no name for it other than to call it “swelling
of the soil”.
To quote him: “As for covering the chambers
with fabric, only time will tell.” One of the
flags he said “was the laying of the fabric
out, then covering it. If the fabric is not contoured
to the chambers, it will bridge low areas and eventually
sag and give way and create subsidence.” Information
he had found suggest the issue of soils expanding
or rising inside the void rather than infiltration
through the louvers.”
Example images of failed chamber
systems filled with sand and soil
He went on to say That it is not possible
in soils under pressure (Rock and Pipe systems, (Dixie’s
way of doing things). He went on to say that all soils under
Rock and Pipe systems to be under pressure and not likely
Another said they install chambers with fabric paper and
some chambers without fabric paper. In chambers without
fabric paper they have seen infiltrated soil in the chambers,
blocking the use of the chamber itself.
Another said that the sand in the chambers comes in from
the louvers and from expansion of the soil below the chambers.
Some manufacturers have now changed the design on the louvers
sloping them more downward.
Dixie Septic Tank is more than happy to show you more examples
of louvered chambers where sand has gone through them and
filled up the useable chamber area.
Which system would you prefer? In this
part of Florida putting fabric cover over the chambers is
not required. Even if they did, reading above tells you
of problems that could exist. We hardly ever see installers
putting fabric paper over chamber systems, it’s cheaper
and less labor involved.
So now you have a choice to make... Do
you go with a system that is doomed to fail from the start
by putting sand into the chambers from two different directions?
Or do you go with a Rock and Pipe system, like what Dixie
installs, that will give you 20-25 years of service? Remember
you only get what you pay for. We only do the Rock and Pipe
systems and we know they will give you many years of service.