Slate Septic Services

(405) 872-9390

13400 Banner Road
Lexington, OK 73051-6114

Learn MoreContact Us

SLATE SEPTIC Offers The Following Services Residential & Commercial Services:

  • Septic Tank Cleaning / Pumping
  • Custom Backhoe Work
  • Installation
  • Repair
  • Cleaning
  • Lagoons
  • Aerobic Systems
  • Storm Shelters

Need a new septic system installed?

We’re equipped and experienced to handle any or your residential or commercial system installation needs.

Septic System Maintenance

To be a leader in any service industry, a company must remain sensitive to the needs and concerns of its customers.

Today’s septic system customers are fully aware that their septic system represents one of the many ways they interface directly with the environment. They view the septic system, in modern terms, as an appliance. It performs a service as a part of the total comfort system of their homes and businesses. They understand that responsible decisions with regard to the care and maintenance of their septic system will have a positive impact on precious ground water, and on the economic plans they have for their families and businesses as well. This flyer provides information to help our customers make those decisions. Please read it carefully and keep it on file as a reference.

An Overview

Your septic system, when compared to urban and suburban living areas, functions as a mini sewer system, and as a mini waste treatment plant. All household waste is disposed to the septic system.

The termination point of your septic system is the environment. What you put into your septic system and how you choose to maintain it are important.

Your septic system is buried in the ground and consists of some piping, a watertight tank and a leaching field.

The septic tank was first introduced in England about 1900. It organically decomposes waste matter through bacterial action. The bacteria required to do the work enter the tank with normal household waste.

The leaching field consists of a network of perforated pipes laid just under the surface of the ground in a pattern on a bed of gravel. In a healthy system, clear water exits the septic tank and enters the perforated pipe network of the leaching field. It drains into the gravel, is absorbed by the surrounding soil and evaporates up into the air above the field. If anything other than clear water exits your septic tank into the leaching field piping, both the leaching field and the environment suffer.

What Can Go Wrong?

First, let’s compare a healthy septic tank and a septic tank which is unhealthy.

A septic tank is a watertight box. When household waste enters this box, organic material floats to the surface where bacteria biologically convert it to liquid. We will call this the floating layer. Inorganic material and by-products of bacterial digestion do not float. They sink to the bottom of the tank and accumulate, creating a sludge layer. Water entering the tank occupies the space between the floating layer and the sludge layer. A large clear water layer is important in a healthy septic tank.

Trouble begins when material from either the floating layer or the sludge layer exits the septic tank to the leaching field. This will clog the field’s piping system and bring harmful unprocessed waste in contact with ground soils and ground water.

What To Do

A properly designed and maintained septic system is environmentally friendly and requires no major economic expense over the course of a lifetime.


Septic system maintenance has two parts. First, the sludge layer that accumulates at the bottom of your tank …


This maintains the size of the water layer and eliminates any possibility of sludge entering and clogging your leaching field thus contaminating the environment. There is no additive or home remedy to reduce the sludge layer. Replacing your leaching field is an enormous expense and inconvenience. The second part of septic system maintenance involves the bacteria necessary for digesting organic solids in the floating layer.


They are very sensitive to many home care products and commonly used chemicals. We call these products and chemicals “Anti Septics”. If the bacteria are killed or not present in sufficient numbers to digest the floating layer and maintain its size, these harmful solids will exit your tank, clog your leaching field and harm the environment. Anti Septics include:


Today many ecologically-safe home care products are available, and we encourage our customers to exercise good judgement to insure the proper operation of their mini treatment plant.

Yeast, Baking Soda and Taboos

Rural leaching of waste has been around for a long time and many myths exist. Yeast, when added to your septic system, merely provides a “fermentation” environment. Yeast does not provide bacteria. Baking soda raises pH in your septic tank. It provides no bacteria. In fact, raising the pH of your septic tank too much can actually harm the septic process. We encourage you and all our customers to call us for factual information before trying home remedies.

Septic systems are tough mini treatment plants. Properly designed and installed, they function flawlessly. They are organic, natural and kind to the environment.


They are not designed to accept cigarette butts, table scraps, kitchen grease, garbage disposal refuse, tampon tubes, harmful household products or harsh laundry detergents.

When To Pump Your Septic Tank

Your septic tank must be pumped regularly. For our customers this happens automatically and at different intervals. How often your septic tank must be pumped is determined by:

The physical size of your tank ( its volume ), the number of people it supports, the frequency of showers, laundry, flushing, etc., how much inorganic material is introduced, the design and condition of your leaching field and the type of soil in the area of your leaching field.

Other Services

Other services include tractor work, brush hog works, house pads, driveway work, creating ponds, and installing storm shelters.

Order Supplies

Tank Treatment

This product is a specially blended formula which is designed to improve and maintain septic tank and cesspool performance. One 2oz. packet of Slate Septic’s microbial formula contains approximately 300 billion bacterial organisms.

$35 for one box (contains 12 monthly treatments for a 1000 gallon tank)
Can be picked up or shipped ($6.50 for shipping via USPS)

About Us

Slate Septic was established in 1972. We have an excess of 40 years experience to meet your needs. We serve clients across Cleveland and McClain counties, including Norman, Noble, Slaughterville, Lexington, and Purcell.

Contact Us

Phone: (405)872-9390
Fax: (405)872-9375

Our mailing address is:
Slate Septic
13400 Banner Road
Lexington, OK 73051-6114

Thank you for your interest in Slate Septic. Please contact us with questions or if you would like a quote.