It is very important to understand that you must meet these standards and allow the utility to inspect before coverage. If not, connecting to our system is a crime called theft of services and we would be forced to prosecute.
*It is prudent to look over the electrical section also.*
TPUC (Tennessee Public Utility Commission) requires that the utility be able to cut off the customers water service for non payment of the sewer bill. If you consider the alternative, that's a good idea,since turning off the sewer line could cause a sewer spill and endanger peoples' health. We require a lockable cutoff valve in a meter box in the waterline just behind the water meter. See the approved valve types bellow
When a pump is required at home to move the sewage water to the sewer plant for treatment, two septic tanks are required. The first has a divider wall and the second is open inside. These tanks must be a one peice design (concrete only; plastic is allowed only in special circumstances, see tank specifications). Tank lids and risers are to be sealed with tar rope or other sealants.
One peice tanks do not have a seam around the side half way up.
Two peice tanks have a seam around the sidewall of the tank. 2 piece tanks have a problem with leaking ground water into the tank. Ground water can cause problems with overloading the system for the neighborhood.
Tank location should be carefully considered. There are a few important items don't set you tanks on fill dirt as it will settle over time and cause damage. The utility will need to service your system by pumping the solids buildup out of the tank. The tank needs to located so that a truck can back down your drive and extend its' hose (usually a few hundred feet avaliable) to service the tank. The vacuum truck used to remove the solids can generally only lift 25' vertically, so don't set the tank too low. The outfall pipe coming from the house needs a cleanout with a sewer popper lower than your floor level. This sewer popper will open in case the line to the tank ever stops up. this will allow the sewage to flow on top of the ground, messy yes, but not in the house!
The pump tank can be located beside or after the septic tank, again only on virgin soil, not fill.
The septic tank will have two 24" polylok risers from the top of the tank to the surface of the ground level. The pump tank only needs one 24" polylok riser to the surface above the pumps.
The utility requires certian brand name products, like polylok risers for inventory. If we allowed everyone to use what they wanted there is no way we could have that much inventory.
The polylok risers will have safety screens installed. We want to be very careful about a child falling into the tanks. So we require the safety screens and the lids be screwed down with #2 square head stainless steel screws
The piping leaving the house and connecting the tanks will be 4 inch sch 40 PVC. In the line from the house to the tank, install a sewer popper lower than the floor level. Place a sanitary tee with a 12-16 inch tail peice on the outlet side of the septic tank. This tee will need a septic filter installed in it. Locate the tee so the filter can be removed for cleaning.
If you need to ask questions or have concerns please call us at 865-908-0432
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