How Are Septic Tanks Inspected?

A thorough inspection of the septic tank is a must if you’re thinking about buying a home that has a septic system. You should have your home’s septic tank checked not only before you buy it, but every year for the life of the system. These systems can allow scum to build up over time. It is essential to inspect the levels to avoid clogged outlet baffles or inlets. Pumping is required for most systems every 3 to 5 years depending on how large the tank is, household usage, and other factors. Understanding how septic tanks work is essential in order to understand their operation.

What Does a Septic Tank Do?

Here is a summary of the major components of any septic tank

  • Sewer line – This is the main waste line that connects your home’s plumbing and the septic tank.
  • Septic tank – This is an underground tank that collects and treats water waste from your home.
  • Leaching system – This is the drainage system that permits waste effluents to be dispersed in the soil.

The Actual Inspection

A Stick test is the most common method of inspection. Here is a list containing the materials that are used for this type of inspection.

  • 2 PVC Pipes 10 Feet in Diameter
  • End caps *4
  • 1 90deg elbow*
  • PVC cement (blue cement for rain and wet).
  • 2 adapters, SxMPT, threaded*
  • 1 coupler, threaded*
  • 2 feet of a white towel, old towel, or gym sock
  • Use string or duct tape
  • Pencil, or waterproof marker
  • Rubber gloves
  • Use 1/4 cup bleach to disinfect water in a gallon bucket
  • Plastic bag to dispose of towels, socks, and rags

The manhole cover must be removed in order to access the tank.

The second step is to measure the scum. The “scum stick” is made from the PVC pipes and elbow, as well as end caps. The manhole is covered with a board or stick. The scum stick is then placed on top of it so that one end touches the tank. The stick is then pushed through the scum layer, and marked. The stick is then used to mark the bottom of the layer. The distance between each mark is measured.

The third step is to measure the sludge layer. First, a hole in the scum is made that reaches the top of the sludge layer. PVC pipe and adapters are used to make a “sludge stick” measuring approximately 10 feet in length. The bottom of the stick is covered with cloth and secured with duct tape, string, or string. Once the stick has reached the top of the sludge layer, it is carefully lowered into the tank through the hole made by the scum. The sludge stick is marked with a mark. After that, the stick is dropped to the bottom of the tank and again marked. To allow the sludge to stain the cloth, the stick must be held in place for five min. The working depth of the tank is measured from the distance between the marks on the stick. The height of the stain on the cloth is determined by the thickness of the sludge layer.

Finally, the baffles will be inspected. Finally, they are exposed and inspected for corrosion.

After the pool inspection boerne is completed, proper cleaning and disinfection are performed.

Lone Star Inspections
32882 Interstate 10 West Suite 203, Boerne, TX 78006
210-643-4588

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