Concrete
Heavy and durable. Check seams, cracks, lifting access and bedding.
Septic Tank Installation & Replacement in Murfreesboro, TN
Septic installation or replacement starts with the property, then the approved system.
Tennessee minimums are 750 gallons through two bedrooms, 900 for three and 1,000 for four, adding 250 per extra bedroom. The field and any advanced equipment need separate approval.
Tennessee Tank Sizes & Materials
State minimums include 900 gallons for three bedrooms and 1,000 gallons for four. These are storage volumes, not daily treatment rates or a measured Murfreesboro average.
| Bedrooms | Minimum tank capacity |
|---|---|
| 2 or fewer | 750 gallons |
| 3 | 900 gallons |
| 4 | 1,000 gallons |
| 5 | 1,250 gallons |
| 6 | 1,500 gallons |
Add 250 gallons per bedroom above four. The approved design can require more; commercial capacity needs a separate flow-based calculation.
Fiberglass
Lighter to move. Correct support, backfill and groundwater protection matter.
Polyethylene
Lightweight and corrosion-resistant. Use an approved model and installation method.
Soil depth, limestone, access and groundwater affect installation. For CUD STEP properties, contact the utility before arranging tank work.
Confirm Sewer
Check the serving utility before choosing septic replacement. Availability and state connection rules can change the plan.
Evaluate the Soil
Assess seasonal groundwater, soil layers, drainage, setbacks and usable replacement area.
Get the Construction Permit
Apply through TDEC before dirt work. Alternative systems need the required soil mapping and design.
Define the Full Scope
Include old-system retirement, access, tank, equipment, field work and restoration in the proposal.
Inspect Before Covering
Arrange the required final inspection and Certificate of Completion. Keep the approved layout with the property.
Read our Murfreesboro septic sizing, materials and care guide.
Septic Tank Installation & Replacement FAQs
Practical answers for Murfreesboro homes and businesses.
Can I use a conventional field?
Only if the soil and approved design support it. Some sites need another treatment or distribution method.
Does a larger tank solve wet soil?
No. Storage capacity cannot correct unsuitable receiving soil or inadequate groundwater separation.
A Clear Plan for Your Septic System.
Tell us where you are, what is happening and the service you need.